modern humans first appeared about __ years ago

Answers

Answer 1
Seven million




Hope i helped
Answer 2

Answer:

200,000 years

Explanation:

Pretty sure that was the answer on a-p-e-x


Related Questions

zeugen and yardang differences​

Answers

Answer:

Yardangs are formed on vertical strata while zeugen on horizontal strata. ... Yardangs are formed on vertical hard/soft layers of rock, while zeugen (this is its plural form) are formed on horizontal bands of hard/soft rocks giving it a more mushroom-like shape. The Great Sphinx of Giza has been sculpted in a yardang

Based on the population density maps above, what can be inferred about Britain’s migration patterns? A. The population of Britain was greater in 1701 than in 1911. B. Britain was more densely populated in 1911 than in 1701. C. Fewer people lived in urban areas in 1911 than in 1701. D. The northern part of the island was more densely populated than the southern part in 1701.

Answers

Answer: B. Britain was more densely populated in 1911 than in 1701.

Explanation:

In the map below, the darker colors are used to denote a heavier population density. Looking the map you will notice that there are more darker colors in 1911 then in 1701 which would mean that Britain as a whole was more densely populated in 1911 than in 1701.

This was down to Britain becoming a World Military and Economic power. These two factors meant that more prosperity was due to Britain which enabled it to reduce the mortality rate of its people in the so called Mortality Revolution.

Which of the following factors does NOT contribute to Turkey's economy?

Question 1 options:

textiles


hydroelectric power


oil


manufacturing

Answers

Answer:

oil

Explanation:

The turkey is a producer of natural oil and gas but the state-owned TPAO is not sufficient enough to make or contribute to the economy through turkey is a major export of apparel, textile, and manufactured transport equipment. Turkey imports machinery chemicals, semi-finished goods and fuel. The agriculture and manufacturing sector are the most dominant sectors.

Answer:

I took the test its OIL

Explanation:

In the United States, dry lines commonly develop over _____ during _____: Group of answer choices western Texas, Oklahoma, and Kansas; spring and early summer the Northeastern states; spring the desert Southwest; winter Southern California; early summer

Answers

Answer:

In the United States, dry lines commonly develop over southern Great Plains during mature cyclone.

If__________is added to the single cell model of global circulation, the single cell convection system becomes a three cell convection system.

Answers

Answer:

Thermal energy

Explanation:

The atmospheric circulation is a large system of movement of air along with the circulation of water and thermal energy is redistributed o the surface of the earth through this method.  The three cells namely Hadley, Ferrel, and polar cells that exist in the northern and southern parts of the world are balanced by the high and low pressures. The latitudes of 30 to 35 degrees are the place of high pressure were they diverge form.

Bioplastics made from corn grown using industrialized agricultural methods would have a smaller ecological footprint that bioplastics made from native prairie switchgrass.
A. True
B. False

Answers

Answer:

A this is true

Explanation:

i had to answer this question and i got it right

Bioplastics made from corn grown using industrialized agricultural methods would have a smaller ecological footprint that bioplastics made from native prairie switchgrass.

Thus, the correct option A.

What are Bioplastics?

Plastics made from renewable biomass sources, such as plant fats and oils, maize starch, straw, woodchips, sawdust, and recovered food waste, are known as bioplastics.

Some bioplastics are made by processing polysaccharides (such as starch, cellulose, chitosan, and alginate) and proteins (such as soy protein, gluten, and gelatin) directly from natural biopolymers.

Other bioplastics are made chemically from sugar derivatives (such as lactic acid) and lipids (such as oils and fats) from either plants or animals, or biologically by fermentation of sugars or lipids.

Contrarily, conventional plastics like fossil-fuel plastics, often known as petro-based polymers, are made from natural gas or petroleum.

Bioplastics have the advantage of not requiring fossil fuel as a raw material, which is a limited and unevenly distributed resource with political and environmental implications.

Learn more about Bioplastics, here

https://brainly.com/question/17285813

#SPJ5

Compare and contrast a perceptual region and a formal region

Answers

Answer:

A nation is a formal region; it is a particular political entity and may have a common language. ... Perceptual regions reflect people's feelings about certain areas; in the United States, southern California and the South each have a certain image. They are perceptual regions.

A climate classification based on the geographic determinants of climate, such as latitude or elevation, is an example of a(n)'

Answers

Answer:

Genetic classification.

Explanation:

The genetic classification of climate is based on determinants of climate such as, location with respect to wind and pressure belts, latitudinal control of temperature, effects of mountains.

Genetic classification also relies on information about climatic elements like solar radiation, air masses, and pressure systems.

This classification is qualitative and climate is designated in a subjective manner with no rigorous scientific research done.

According to Nostrand, Map 10.3, which of the following is not considered one of the three Ohio river ports that had natural advantages for town founding?
a. Cincinnati
b. Pittsburgh
c. Louisville
d. St. Louis

Answers

Answer:

d. St. Louis

Explanation:

St. Louis is a city situated along the western bank of the Mississippi River. Missouri is a state in the United States of america and St. Louis is located in this Missouri state. St. Louis is one of the largest urban areas of this state. Cincinnati , Pittsburgh  and Louisville  are the cities which are located on the bank of Ohio river while St. Louis located in different state along different river.

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the oldest unit in the center, the underlying structure is a(n) ________.

Answers

Answer:

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the oldest unit in the center, the underlying structure is a syncline.

Which type of rock can be either foliated or non-foliated?
A. Metamorphic
B. Sedimentary
C. Igneous

Answers

Answer:

A

Explanation:

metamorphic

Metamorphic rock
Hope it helps ❄️

Geologists use epochs to further divide geologic eras and periods. Put the following epochs from the Cenozoic Era in chronological order, from the earliest to the most recent.a. Pliocene b. Paleocene c. Eocene d. Miocene e. Oligocene

Answers

Answer:

Earliest to Latest goes from: Pliocene, Miocene, Oliocene, Eocene, Paleocene.

Explanation:

All these times occur during the Cenozoic epoch.

The discontinuity separating the crust from the mantle is named as: A.Mohorovicic B.Conrad C.Reppetty D.Gutemberg

Answers

Answer:

A.mohorovic

Explanation:

The Mohorovičić discontinuity (/moʊhəˈroʊvɪtʃɪtʃ/ MOH-hə-ROH-vitch-itch, Croatian: [moxorôʋiːtʃitɕ]),[1] usually referred to as the Moho discontinuity or the Moho, is the boundary between the Earth's crust and the mantle. It is defined by the distinct change in velocity of seismological waves as they pass through changing densities of rock.[2]

The Moho lies almost entirely within the lithosphere.[3] Only beneath mid-ocean ridges does it define the lithosphere–asthenosphere boundary. The Mohorovičić discontinuity is 5 to 10 kilometres (3–6 mi) below the ocean floor, and 20 to 90 kilometres (10–60 mi) beneath typical continental crusts, with an average of 35 kilometres (22 mi).

Named after the pioneering Croatian seismologist Andrija Mohorovičić, the Moho separates both the oceanic crust and continental crust from underlying mantle. The Mohorovičić discontinuity was first identified in 1909 by Mohorovičić, when he observed that seismograms from shallow-focus earthquakes had two sets of P-waves and S-waves, one that followed a direct path near the Earth's surface and the other refracted by a high-velocity medium.[4]

Here is a general sequence of events in the development of the Renaissance. Which statement BEST completes the second event? Event 1: Italy's location encouraged trade. Event 2: Event 3: Italy's families became art patrons. A. Italian merchants helped artists and writers study in Muslim lands. B. Italian merchants gained wealth and political power. C. The Renaissance spread beyond Italy to other countries in Europe. D. New Italian city-states emerged to sponsor the Renaissance.

Answers

Answer:

Event 1: Italy's location encouraged trade.

Event 2: Italian merchants gained wealth and political power.

Event 3: Italy's families became art patrons.

Answer:

Event 1: Italy's location encouraged trade.

Event 2: Italian merchants gained wealth and political power.

Event 3: Italy's families became art patrons.

Explanation:

New Faces, New Places: Mastery Test
Select the correct answer.
Which personality trait best fits the description?
Lupe estudia mucho y toma cursos avanzados en matemáticas y literatura.
A.
timida
В.
amable
C
estudiosa​

Answers

Answer: C. estudiosa​

Explanation;

The text mentions that Lupe studies very hard and even takes advanced courses in Math and Literature. The best personality trait to describe him is therefore Estudiosa which means Studious.

A Studious person is one who studies quite a lot in the pursuit of academic excellence. They spend a bulk of their time reading books as well in a bid to gain knowledge. Such people feel comfort when they read.  

5. How were Earth's core and mantle formed?

Answers

Answer:

God created the earth Genesis chapters 1 - 2

Which statements refer to weather and which refer to climate.

a. The baseball game was rained out today.
b. January is Omaha's coldest month.
c. North Africa is a desert.
d. The high this afternoon was 25°C.
e. Last evening a tornado ripped through central Oklahoma.
f. I am moving to southern Arizona because it is warm and sunny.
g. Thursday's low of -20°C is the coldest temperature ever recorded for that city.
h. It is partly cloudy.

Answers

Answer:

a. weather

b. climate

c. climate

d. weather

e. weather

f. climate AND weather

g. climate AND weather

h. weather

What type of rock is most likely to form in an earthquake zone?
A. Extrusive igneous rock
B. Sedimentary rock
C. Metamorphic rock
D. Intrusive igneous rock

Answers

Answer:

C. metamorphic rock

Explanation:

Although metamorphic rocks typically form deep in the planet's crust, they are often exposed on the surface of the Earth. This happens due to geologic uplift and the erosion of the rock and soil above them. At the surface, metamorphic rocks will be exposed to weathering processes and may break down into sediment. hope this helps you :)

Which of the following gulfs are in Southeast Asia? A. the Gulf of Aden and the Gulf of Bahrain B. the Gulf of Mexico and the Gulf of California C. the Gulf of Thailand and the Gulf of Tonkin D. the Gulf of Suez and the Gulf of Oman

Answers

Answer:

Which of the following gulfs are in Southeast Asia?

C. the Gulf of Thailand and the Gulf of Tonkin

Answer:

I do agree, and think it's C. The Gulf of Thailand and the Gulf of Tonkin

According to the lecture, the urban environment/landscape of Megalopolis includes all of the following EXCEPT:________
A. A growth pattern that followed transportation corridors
B. Little variation in land use
C. Cultural institutions
D. Most of the construction of beltways and parkways took place after World War II
E. Places that import what they lack from places that have a surplus

Answers

Answer:

B. Little variation in land use

Explanation:

Megalopolis is defined as a combination of two or more urban cities. This was formed as a result of a large increase in developing urban regions of the country and is characterized by a large growth pattern. It has a high variation in the land use.

It also has growth pattern that followed transportation corridors, cultural institutions, a majority of the construction of beltways and parkways took place after World War II and places that import what they lack from places that have a surplus.

Understanding how to recognize landslides and other styles of mass wasting is important for homeowners! An earthflow is best described as:
a. The movement of soil downslope along a planar surface of rupture
b. A non-cohesive soil flow made up of sand to boulder sized sediments that is triggered by intense rainfall or rapid snow melt
c. A cohesive soil flow made up of mostly fine grained sediments (e.g., silt, clay and sand) that is triggered by intense rainfall or rapid snow melt
d. A landslide induced by the liquefaction of sediment during an earthquake
e. a mass of rock dislodged from a steep slope that free falls, bounces or rolls downslope
f. The gradual movement of soil downslope over the course of years or even centuries
g. The rotational movement of soil downslope along a rotational surface of rupture

Answers

Answer:

b. A non-cohesive soil flow made up of sand to boulder sized sediments that is triggered by intense rainfall or rapid snow melt

Explanation:

Earth flow is characterized by fine grained particles which are usually in a downwards motion as a result of the impact of the forces of gravity and water sweeping through it.

It is also known as a non-cohesive soil flow made up of sand to boulder sized sediments that is triggered by intense rainfall or rapid snow melt.

What character motivation advances the plot?
This motivation moves the rising action toward what
Event?

Answers

Answer:

1 the vizir's envy

2 the Kong rebuking the vizir

Explanation:

Answer:

1. The vizirs envy

2. The King rebuking the vizir

Explanation:

I just did it on edge.

If you wanted to enjoy direct sun on Fogo Island in the tropical West African country of Cape Verde, which date would be best

Answers

The direct sunshine of Fogo island in western Africa can be seen best in the month of July and onwards.

What is the time to enjoy the direct sun on Fogo islands?

Fogo is the volcanic island found in Cape Verde, which is an area of about 476 km sq. and is about a distance of 2,829 meters in elevation. The island is found between the islands of the Santiago to the east and the Brava to the west.

The climate of the place is moderate tropical and has an annual temperature of about 25 degrees.

The time from July to the November is mainly dry and has warm thus it's the time when most of the island gets direct sunlight.

Find out more information about the enjoy the direct sun.

brainly.com/question/3005929.

Based on the population density maps above, what can be inferred about Britain’s migration patterns? A. The population of Britain was greater in 1701 than in 1911. B. Britain was more densely populated in 1911 than in 1701. C. Fewer people lived in urban areas in 1911 than in 1701. D. The northern part of the island was more densely populated than the southern part in 1701.

Answers

Answer:

i think its A sorry if its wrong

Explanation:

Explain how the processes that create hot-spot volcanic chains differ from the processes that generate volcanic island arcs.

Answers

Answer:

Following are this difference to this question:

Explanation:

It is an interconnected tectonic plate for creating an island arc, in which sea plate sinks into the sea and some other, throughout the continental as well as oceanographic croutons a tourist hotspot volcanic eruption forms, in which lava explodes from its coat.  

These volcanos are often far from boundaries with plate lands, and All the types are restrained, however, the volcanic arches connect with the sea, whereas the island arches come into contact with the ocean.

units use to measure temperature

Answers

Explanation:

Hey, there!!

Temperature is defined average kinetic enegry of the molecules contained in the body or substance. The SI unit of temperature is kelvin. We generally measure temperature in:

Fahrenheit (ranges from 32°f to 212° f)Kelvin (ranges from 273° k to 373° k)centrigrade ( ranges from 0°c to 100° c)

Hope it helps...

Discuss five
five of component of
a map​

Answers

Answer:

Title, a legend, a grid and a compass

Explanation:

The five components of a maps are a Title, a Legend, a Grid and a compass rose to indicate direction.

The granite dome in Twain Harte was damaged by the growth of ______________ joints, likely due to ________________.

Answers

Answer:

The granite dome in Twain Harte was damaged by the growth of exfoliation joints, likely due to thermal expansion.

What would be the most likely result of the development of a new subdivision in a remote area with no utility services provided by the county or nearby cities?

Answers

Answer:

The development of a new subdivision in a remote area would lead to the creation of a poor area, without development possibilities, especially since there are no utility services.

Which situations describe increasing atmospheric stability (choose all that apply): Group of answer choices daytime solar heating of the surface increases surface temperatures cold air from land moves over a warm lake rising surface temperatures on a calm, sunny summer day environmental lapse rate increasing with time a North wind brings in cold air from Canada, lowering surface temperatures Surface air cools while air aloft warms

Answers

Answer:

daytime solar heating of the surface increases surface temperatures.

Explanation:

Atmospheric stability is the condition where the air is generally considered to be stable than earlier due to the certain changes that take place over the period of time which are associated with the weather and climatic variability. As the colder air mass is denser than the warmer and lighter air mass thus reverse in the condition leads to instability.
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give an example of a balanced force and explain what makes it a balanced force A pharmacist needs 16 liters of a 4% saline solution. He has a 1% solution and a 5% solution available. How many liters of the 1% solution and how many liters of the 5% solution should he mix to make the 4% solution? Which of the following symbols could correctly finish the statement. Select all that apply. 0___-8 = > < Two friends are standing at opposite corners of a rectangular courtyard. The dimensions of the courtyard are 12 ft. by 25 ft. How far apart are the friends? The process whereby the earths life changes over time through changes in genes of populations of organisms in succeeding generations is called____.a. emigration.b. mutation.c. natural selection.d. evolution.e. genetic drift. Need help will give 50 points What type of rock is most likely to form in an earthquake zone?A. Extrusive igneous rockB. Sedimentary rockC. Metamorphic rockD. Intrusive igneous rock Which data set matches the box-and-whisker plot?A) 12 13 15 19 23 23 25 26.5 28 30B) 15 13 19 21 23 24 27 29 32C) 11 31 13 15 19 21 21 25 27 29 31D) 11 13 15 19 23 23 24 26.5 28 33 An octagonal pyramid ... how many faces are there, how many vertices and how many edges? A triangular prism ... how many faces are there, how many vertices and how many edges? a triangular pyramid ... how many faces are there, how many vertices and how many edges? Plzz help i really need help.. +If thesides of a triangles are6, 8 and n. howmany integer values of ncould be themeasure of thethird side of the triangle? Adam published his personal opinion about the current condition of politics stating,"Though the government is unable to fulfill the demands of the public,they demand votes;they really are beggars on streets." Can politicians sue him for defamation under tort?A) No,because as a general rule the material in a newspaper is totally exempted.B) Yes,because defamation in a newspaper is always a tort.C) Yes,because Adam wrote even though he did not have authority.D) No,because statements of pure opinion do not amount to defamation. What is this used for and how do i use it..? Does the amount of methanol increase, decrease, or remain the same when an equilibrium mixture of reactants and products is subjected to the following changes? a. the catalyst is removedb. the temp is increasedc. the volume is decreasedd. helium is addede. CO is added A deep-space vehicle moves away from the Earth with a speed of 0.870c. An astronaut on the vehicle measures a time interval of 3.10 s to rotate her body through 1.00 rev as she floats in the vehicle. What time interval is required for this rotation according to an observer on the Earth consider the bevariate data below about Advanced Mathematics and English results for a 2015 examination scored by 14 students in a particular school.The raw score of the examination was out of 100 marks.Questions:a)Draw a scatter graph b)Draw a line of Best Fitc)Predict the Advance Mathematics mark of a student who scores 30 of of 100 in English.d)calculate the correlation using the Pearson's Correlation Coefficient Formulae) Determine the strength of the correlation Wait times at a dentist's office are typically 21 minutes, with a standard deviation of 2 minutes. What percentage of people should be seen by the doctor between 17 and 25 minutes for this to be considered a normal distribution? Carey earns $9.75 working part time on weekends. The table below shows the amount, a, Carey earns for working h hours. Careys Earnings h 0 1 3 a $0 $9.75 ? Which value completes the table to show the amount Carey earns for working 3 hours? What is mRound the answer to the nearest whole number.O 30O 35O 55O 60 -7p+2(5p-8)=6(p+6)-7