After it experiences a "helium flash" a star like the Sun will have a brief period of stability, fusing helium into carbon (and sometimes oxygen). During this brief stable stage, the star:_________a. Increases tremendously in luminosity.b. Gets to be even larger in diameter than it was as a red giant.c. Returns to the position on the H-R diagram that the star had in its main-sequence stage.d. Is able to fuse many of the heaviest elements (such as iron and gold) in its superhot core.e. None of the answers provided is the correct answer
Answer:
a. Increases tremendously in luminosity
Explanation:
The helium flash is a thermal nuclear fusion with large quantities of helium gas into carbon. During the red giant phase, the sun is predicted to have a flash 1.2 billion after it leaves the main sequence and this helium fusion cannot be produced by the low mass stars. The sun in this stage will burn out or run out of its fuel and eventually will lead to gravitational collapse. The star being to shrink in size and core starts to collapse.20. How is a degree of longitude or latitude further subdivided? Give an example,
Answer:
Degrees of latitude and longitude can be further subdivided into minutes and
seconds (units of arc, not time): There are 60 minutes (') per degree, and 60
seconds (") per minute. For example, a coordinate might be written 65° 32' 15". ...
At the equator, it is approximately 69 miles, the same size as a degree of latitude.
For finding locations on the surface of the Earth, measurement lines called latitude and longitude are utilized. The degrees of a circle is used to express the angular measurements. The 360° that makes up a circle. 60 minutes can be divided into each degree, and 60 seconds can be divided into each minute.
What is the difference between longitude and latitude?The earth's center serves as the origin for measuring both longitude and latitude. Oriented to the east, a longitude is an angle measured from the prime meridian. Angular distance from the equator is measured by latitude (latitudes to the south are negative).
Locating locations on the surface of the Earth requires the use of measuring lines called latitude and longitude. They are angular measurements that are quantified in terms of circle degrees. A complete circle has 360°. There are 60 minutes in each degree, and there are 60 seconds in each minute.
Thus, Since latitude and longitude are angular distances, they are expressed in degrees (°). 60 minutes (') and 60 seconds (') are further separated into each degree.
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what would happen to the earth without natural greenhouse effect
Answer:
Without naturally occurring greenhouse gasses the Earth would turn very cold.
Explanation:
Greenhouse gasses lock in heat so without them all of the heat from the sun would be released into space.
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.
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:
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) ________.
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 depositional landform is created at the ultimate base level (or terminus!) of a stream, where sediment is deposited into the sea?
Answer:
Peneplain.
Explanation:
The base level is the lower limit of the erosional process and the ultimate base level is the plains that result from the projection of sea level under the landmass. This process of erosion creates a peneplain. The base level is dynamic and changes according to the following factors as sea-level changes, tectonic factors, river captures, and sedimentation. Peneplinasare low featureless deposits that are created by the terminus of the dream where the sediments are merged with the sea.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.
Answer:
i think its A sorry if its wrong
Explanation:
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
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.
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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
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.
Which of the following are types of thematic maps? Check all that apply
Answer:
the answer is
A: special-purpose maps
C: choropleth maps
D: dot-density map
Explanation:
The statement that describes the types of thematic maps includes:
A. Special-purpose mapsC. Choropleth mapsD. Dot-density mapWhat is a thematic maps?A thematic maps refers to class of map that are specifically themed for a particular geographic area.
Hence, the types of thematic maps in this context include Special-purpose maps, Choropleth maps and Dot-density map
Therefore, the Option A, C and D is correct.
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Mount Shasta and Mount Lassen in the far northeastern part of California, were formed by what process
Answer:
Subduction.
Explanation:
Mount Shasta is a potentially active volcano in the southern end of the cascade range ad an has a height of 14,179 feet. Being a stratovolcano its a subduction process between the Juan de Fuca plate beneath the North American plate. The Lassen peak is surrounded by an active volcano in the cascade range of the western united states and lies in the volcanic arc. This region is also affected by the Cascadia subduction zone.Which continent sees the sun first, North America or South America?
Answer:
south America sees it first
What is the purpose of this map?
to show topographical information
to show boundaries between countries
to show information about weather and temperature
to show economic differences
Answer:
to show information about weather and temperature
Answer:
to show information about weather and temperature
Explanation:
What does the Vishnu Schist tell you about the history of the Grand Canyon prior to the formation of the canyon itself?
Answer:
These rocks were part of the oceanic trench.
Explanation:
The Vishnu schist is a part of the Vishu complex of exposed basement rocks and is originally part of the deep ocean trench and was substantially overloaded by the sediments of the Brahma schist some 1.75 billion years ago. Being metamorphic in nature the oldest rocks of the canyon have granite and suggest they have been subjected to intense heat and pressure.units use to measure temperature
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...
what is Ecosystem?
Answer:
An ecosystem is living and non living organisms in conjunction with each other as a system.
At 12 Z (7 am EST) on 13 March 1993, observations of the surface analysis map indicate a _______ air mass lying to the west and northwest of the surface low (well behind the cold front). Group of answer choices mT cP mP Next
Answer:
At 12 Z (7 am EST) on 13 March 1993, observations of the surface analysis map indicate a cold air mass lying to the west and northwest of the surface low (well behind the cold front).
Explanation:
On that day, the storm known as "storm of the century" occurred, where a hot front caused the creation of several tornadoes and a cyclone originating in the Gulf of Mexico, with high-speed winds that extended as far as Florida.
Explain one physical activity/dance you can enploy to teach
the following in your lesson.
a. Walking
b. Jogging
c. Hopping
d. Twisting
e. Skipping
Answer:
d
Explanation:
the answer is d twisting
Compare and contrast a perceptual region and a formal region
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.
What major geographical advantage does agriculture in the Coastal South have over most other regions of North America
Answer:
The region is largely frost-free so many frost intolerant crops can be grown.
Explanation:
The Coastal South in North America consists of cities like Florida, Texas, and North Carolina. This region is known for the exceptional agriculture that occurs there. The nature of their soil is not the cause of this, rather it has a lot more to do with their climatic conditions which range from the time of the last frost in spring to the beginning of the next frost in fall. So, this allows for about nine months of intensive agriculture.
Frost is ice which is mostly seen on the surface of the soil. It is quite difficult for many plants to survive the harsh condition imposed by frost. So the lengthy number of days and months without frost in the Coastal South gives it a great advantage over compared to many other regions in North America.
What 5 cities are south of 30N and west of 15 East
Answer:
The five cities are Brazzaville and the Kinshasa, Luanda, the Libreville, and the Monrovia.
Explanation:
why should be people living in developed countries be as concerned as people living in developing countries about climate change
Answer:
Developed countries have contributed 80% of the global warming as compared to the developing nations.
Explanation:
Climate and global warming are a global phenomenon and affect each and every nation differently, the rise of the surface temperature and rose of the sea levels all around the world impacts the settlements along the coasts. The increase of the greenhouse effects has led to the increase of the oceans becoming a carbon sink. The impact of climate change is felt in developed nations in the form of heatwaves, extreme weather patterns, and submergence of the coastland lands. Every year billions of dollars are wasted on food and water supplies. As of 2030 estimated global warming is expected to kill 250,000 people form malnutrition, malaria, diarrhea, and heat stress.Where else in the bay area or elsewhere do you think would be an important place to dedicate as a wildlife corridor? Explain why?
Answer:
Apart from the Gulf of Mexico area there are other areas that can be wildlife corridor. These could be:
Canadian forest - taigaAndean mountain area - there are many endemic and endangered species.During the ENSO cycle, in the Nino 3.4 monitoring region of the Equatorial Pacific, the typical sea surface temperature departure from normal is 6° C or more.
a. True
b. False
Answer:
b. False
Explanation:
During the ENSO cycle, in the Nino 3.4 monitoring region of the Equatorial Pacific, the variation in normal sea surface temperature is 3 ° C or less. This is because in the tropical pacific the surface water varies between 1 - 3ºC, which makes it impossible for the typical variation of the normal sea surface temperature to be 6 ° C or more.
What is a quokka and what animal family does it belong to
A quokka is an herbivore and a member of the macropod family found mainly in Australia. Females have a pouch on their belly for babies. They look like a cross between a bear and a kangaroo. Many people love this animal because they look like they are always smiling. The population of quokkas is decreasing because of predators, habitat loss, and fires.
Answer:
the quokka belongs to the macropods family.
Explanation:
Facts:
Also known as short-tailed scrub wallabyAbout the size of a domestic catWhich planet has a greater mass than the combined mass of all the remaining planets and their moons?
Answer:
the planet (jupiter) has a greater mass than the combined mass of all the remaining pplanets and theor moons.
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
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
Which of the following descriptions summarizes the political structure of the Bedouins?
Question 9 options:
sedentary groups controlled by foreign powers
herders with tribal leaders but no formal government
small groups headed by emirs, or Arab rulers
nomadic groups governed by the Sa'ud family
Answer:
Herders with tribal leaders but no formal government
Explanation:
Bedouins primarily made their livelyhood herding animals such as goats, sheep, and camels. They were broken up into tribes who were each governed by a tribal leader called a Sheikh.
Answer:
Herders with tribal leaders but no formal government
Explanation:
Coal was created through the decomposition of ancient ___________. A. trees B. fish C. bacteria D. animals
the answer is D because it just is
Answer:
a. Trees
Explanation:
Low-key just think about charcoal in minecraft and its kinda the same...
The Ural Mountains exhibit a north–south orientation through Eurasia . How does the theory of plate tectonics explain the existence of this mountain belt in the interior of an expansive landmass?
Answer:
Ural Mountains have been formed by the collusion of plates during formation of Laurasia supercontinent.
Explanation:
The plate tectonic theory explains the origin of the different landmasses and the variation in different physical relief features over the globe. The Ural mountain ranges are those physical features that run north to south through the western Russia and they form a convection boundary between Europe and Asia. The form an extension of 2,500 km and are approx 1,895 in elevation. Their orology has been formed due to the collusion of the eastern edge of the Laurasia supercontinent with the continent of Kazakhstan and the intervening of the island arcs. This took place in the late Carboniferous period.