Answer:
V ≈ 4577.204 cm^3
Explanation:
Use the volume formula V=4/3πr^3 to find the volume. Since you need the radius but are given the diameter, divide it by 2 to get half.
21.4/2 = 10.7
Now plug that into the formula and solve:
V=4/3πr^3
V=4/3π(10.7)^3
V= 4/3π(1,092.7272)
V= 4/3 * 3432.903
V= 4 * 3432.903/3
V = 13731.614/ 3
V ≈ 4577.204 cm^3 or whatever unit is stated.
Which accurately describes apartheid? O A. It prevented the white minority from having any political power O B. It ended in the late 20th century C. Nelson Mandela started it D. It created a homogenous society
Apartheid is a system of legalized racial segregation started by Nelson Mandela. Option (c) is correct.
What is Apartheid?Apartheid is a system of legally sanctioned racial segregation in which one racial group is denied political and civil rights.
According to the Rome Statute of the International Criminal Court, apartheid is a crime against humanity that is punishable by death.
The Afrikaans word “apartheid,” means “separating, setting apart,”. Separating people based on racial or ethnic characteristics is the basis of apartheid, a policy. Apartheid typically enforces division over physical spaces by isolating one segment of the population from the others, or prohibiting a group from entering certain places because they are members of a particular race or ethnicity.
Therefore, Option (c) is correct.
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Which of the following scenarios are examples of positive-feedback mechanism? Check all that are correct
Answer: Deforestation near the Sahara Desert causes the soil to be exposed. Exposed soil evaporates moisture more readily. Insufficient moisture leads to the death of trees.
A warmer atmosphere causes more evaporation. Water vapor is a greenhouse gas, so this increases the temperature.
Warmer temperatures cause snow to melt. This makes the ground darker, allowing more solar radiation to be absorbed. The warmer ground warms the atmosphere.
Explanation:
Positive feedback mechanism refers to, the changes in a system, which induces further changes. It exists in an environment that leads to the rise in the causative effect of the environment which can change the precipitation, temperature, precipitation and other climatic conditions of the area
Therefore, the examples of positive-feedback mechanism include:
• Deforestation near the Sahara Desert causes the soil to be exposed. Exposed soil evaporates moisture more readily. Insufficient moisture leads to the death of trees.
• A warmer atmosphere causes more evaporation. Water vapor is a greenhouse gas, so this increases the temperature.
• Warmer temperatures cause snow to melt. This makes the ground darker, allowing more solar radiation to be absorbed. The warmer ground warms the atmosphere.
The 'Eye' of the tropical cyclone is usually the calmest portion of the storm characterized by low winds and even the blue sky. The reason that the eye is calm because
Answer:
The answer is: the now strong surface winds that converge towards the centre never reach it.
IN North America, a winter weather change that might be associated with large amplitude Rossby waves is
Answer:
A jet stream that alternates between hot and cool periods.
Explanation:
Winds typically travel at the very same latitudes, but Rossby waves occur when winds shift it into hurricane pattern. The Rossby waves go in a north-south direction and then return again. Whenever the Rossby waves' breezes swing up, they transport warm air first from tropical to the northern, while when they swing down, they transport cold air from either the Arctic to the south, resulting in alternating warm and cold spells.
which control of weather and climate predominantly affect ethiopian climate ?how?
Answer:
Altitude and relief features.
Explanation:
In Ethiopia, the climate changes mostly with altitudes and stays from hot to arid and to cool in plateaus. As t located near the equator, the country has variations in climate throughout the year. There exist various plateaus such as Ethiopian highland and mountainous ranges in the country which is responsible for the different climate of the places.Which of the following spheres of the Earth is most directly affected by earthquakes and volcanoes? O A. Atmosphere O B. Lithosphere O C. Biosphere O D. Hydrosphere
The leading causes of impaired, or polluted, surface waters in the United States originate from both point and nonpoint sources. Arrange the causes of pollution from most common to least common according to data from 2012.
a. pH changes
b. sedimentation
c. nitrogen and phosphorus
d. hypoxia
e. pesticides
f. pathogensp
g. mercury
h. dissolved metals (excluding mercury)
i. PCBs (industrial pollutant)
1. Most common causes
2. Least common causes
Answer:
1. Most common causes---- Mercury, nitrogen and phosphorus, pesticides, dissolved metals (excluding mercury) and PCBs (industrial pollutant)
2. Least common causes---- pH changes , sedimentation and hypoxia.
Explanation:
The most common heavy metals that causes pollution are chromium (Cr), cadmium (Cd), lead (Pb), nickel (Ni), arsenic (As), mercury (Hg), zinc (Zn) and copper (Cu). Nitrogen and phosphorus application pollutes the water due to its leaching nature. The use of pesticides is very common in agriculture that cause more pollution. Pollutant comes from the industries cause water pollution and is responsible for a number of diseases.
the formula and symbol of hydrogen is the same?
Answer:
this is your answer
On the leeside of mountains, bands of heavy snow in some areas with trace amounts of snow in between is likely the result of:
Answer:
The correct response is "Cloud seeding".
Explanation:
A strategy to stimulate as well as enhance the amount of rainfall by spreading dryness ice, as well as iodide particulate matter across storm cloud development throughout a particular location, could be considered as Cloud seeding.Dried ice solidifies freshwater raindrops throughout the sky and turns the latter into some raindropA rectangle and a square have the same perimeter, the rectangle with a length 8cm has an area of 32cm.find the length of each side of the square
The length of one side of square is 20
what is one way mining companies could help protect the environment as part of their business
With the population moving West, the old Northwest was made up of a.New York, Indiana, and Ohio. b.Pennsylvania, New York, and Ohio. c.Cincinnati, Indiana and Virginia. d.Ohio, Indiana and Illinois.
Answer:
With the population moving West, the old Northwest was made up of
d.Ohio, Indiana and Illinois.
Explanation:
Other states that made up the old Northwest were Michigan, Wisconsin, and a portion of Minnesota. New York, Pennsylvania, Cincinnati, and Virginia were never part of the old Northwest. The old Northwest was awarded to the United States after the 1783 revolutionary war. Geographically, the old Northwest included the land between the Great Lakes, the Mississippi River, and the Ohio River.
An example of a genetic temperament
would be
A. a mental illness.
B. classical conditioning.
C. an introvert or extrovert.
Answer:
A
Explanation:
Mental illness sometimes run in families. Some people who have a family member with one may be somewhat more likely to develop one also. Susceptibility is passed on in families though genes.
what is greenhouse effect?
Explanation:
The greenhouse effect is the trapping of the sun's heat in the atmosphere of a planet by gases in that atmosphere. The green house effect happens because of so-called greenhouse gases, which includes carbon dioxide, methane, water vapor & other.
Why could France be thought of as an island?
Answer:
When persecution started again in France in 16th century, the English decided to use the islands to exfiltrate protestants from France. The Huguenots (French protestants) brought with them this new faith in hard work, soon making the islands a wealthy and even more religious place
In Seoul, Korea it’s said that the air pollution is bad and that it shortens people’s lives by a year or so, would this be true for someone who is going to visit only for three months??
Answer:
yes
Explanation:
I would say it would be true because even though you are visiting for 3 months you will still be breathing the polluted air for the 3 months thus it would affect a person in a negative way and it is true.
Question 14 of 20
What led to the Rwandan genocide?
A. A homogenous population
B. Long-standing ethnic tensions
C. Separation into ecozones
D. Drought and flooding cycles
Answer:
B
Explanation:
Tutsis and Hutus at each other's throats for decades, exacerbated by European colonization.
Rwanda's colonial period, during which the ruling Belgians favored minority Tutsis over Hutus, they led to an explosion of violence even before Rwanda gained independence. Thus, option B is correct.
What is the Rwandan genocide?From April 7 and July 15, 1994, during the Rwandan Civil War, there was a genocide in Rwanda. Armed Hutu militias massacred members of the Tutsi minority ethnic group during this roughly 100-day period, as well as some Twa and moderate Hutu.
Failures in international peacekeeping, both a cause and a result of the conflict in Rwanda, accelerated the genocide and lowered public confidence in the U.N.
An estimated 200,000 Hutus participated in the genocide, inspired by lies from several media sources.
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the energy that drives the hydrological cycle comes from
Days when the Sun’s light hits both hemispheres equally are called
Answer:
Days when the Sun’s light hits both hemispheres equally are called equinoxes.
Explanation:
These are the moments when the Sun is exactly above the equator. These days are called equinoxes because the night and day are nearly the same lengths – 12 hours – all over the world ("equinox," comes from Latin, meaning "equal night).
The picture below shows the satellite image of ocean surfaces on Earth at Locations A, B, C, and D.
Which of these graphs best models the waves in the four locations? (100 points)
Answer:
(c) see attached
Explanation:
The color coding indicates points A and B have positive sea height, C has nearly zero sea height, and D has slightly negative sea height. This is shown best in the attached graph.
Why will it be easier for the United States and Western Europe to deal with climate change than countries in Africa?
Answer:
Because they are more devoloped countries
Explanation:
They are more developed because they have more money and a better economy. Whereas some countries in Africa do not have much of an economy. Also, Africa will be warmer due to it being nearer to the equator and Western Europe and the US, have higher latitude away from the equator.
Which fator makes the largest difference in how much of the country's general population is connected to the internet
A.wether a country has a large or small territory.
B. Weather a country is a democracy or a dictatorship.
C. Weather a country prefers tariff or free trade.
D. Weather a country is developing or developed.
similarity between
weathering and mass wasting
Answer:
Both processes occur in place.
Explanation:
Answer:
similarity
Explanation:
The physical disintegration or chemical change of rocks at or near the Earth's surface is known as weathering. The transfer or movement of rock or dirt down slope mostly by gravity is known as mass wasting. Erosion occurs when smaller rock fragments (now pebbles, sand, or soil) are pushed by natural forces. Weathering is the process of a rock changing or breaking but remaining in its original location. Erosion occurs when weathered rock fragments are transported away.
Question 1
Modern scientific theories are NOT:
simple
testable
continuously tested.
perfect
elegant
Answer:
perfect
Explanation:
by elimination:
modern scientific theories are testable n continuously tested
they can be simple n elegant
but they are NOT perfect
Answer:
Explanation:
Modern scientific theories are NOT: simple, elegant, nor perfect.
Which of the following statements about the interaction of Earth's systems is true?
A. The interaction between Earth's systems is limited to a response to human activity.
B. The Earth's system interact using positive feedback only.
C. The Earth's systems interact using negative feedback only.
D. All of the Earth's systems interact with each other.
Chăn nuôi bò sữa ở trung du miền núi Bắc Bộ gần đây được phát triển mạnh do tác động chủ yếu của
Answer:
what that means I don't understand
Ice crystals in the Bristol Glacier are 1 mm long. The crystals in the Camden Glacier are 0.5 mm long. Which of the following statements is true?
The Bristol Glacier is larger than the Camden Glacier.
The Bristol Glacier is older than the Camden Glacier.
The Bristol Glacier moves faster than the Camden Glacier.
The Bristol Glacier is closer to the North Pole than the Camden Glacier.
The correct answer is B. The Bristol Glacier is older than the Camden Glacier.
Explanation
The formation of glaciers has three stages. The first is the accumulation in which the snow falls in one place and accumulates there and forms the glacier. The second is compaction in which new layers of snow accumulate on top of the first ones, compacting the lower layers. The third is crystallization in which pressure and air cause snow to crystallize into glacial ice. Therefore, the age of a glacier can be known by its length, the older is the longer glacier. According to the above, if the length of the Bristol Glacier is greater than that of the Camden Glacier, it is because it is older. Then the correct answer is B.
What should you do if you run aground and your boat has serious damage?
1.Don't put the boat in reverse. Instead, stop the engine and lift the outdrive.
2.Shift the weight to the area farthest away from the point of impact.
3.Try to shove off from the rock, bottom, or reef with a paddle or boathook.
4.Check to make sure your boat is not taking on water.
#BRAINLEST LOVE❣️If a boat sustains serious damage, it is important to prioritize safety and take immediate action to ensure the well-being of everyone onboard.
Determine the extent of the damage and evaluate the immediate risks. If there is a threat to the safety of passengers or if the boat is taking on water, take immediate action to address those concerns.
Use marine VHF radio to call for help. Contact the nearest Coast Guard or marine authorities and provide them with your location, the condition of the boat, and any assistance you may require. If don't have a VHF radio, use any available means of communication to seek assistance.
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1. Calculate the local time at a place 45°W longitude when the
GMT is 12:00 noon.
Answer:
9:00 am
Explanation:
Lines of longitude are imaginary lines running from the north pole to the south pole of earth. These lines are used to calculate the time in places. Also when combined with lines of latitude, they are used to give the exact location of a place.
Given the place is at 45°W longitude and the time at GMT is 12:00 noon.
Degree difference = 0° (GMT) - 45° = -45°
1° = 4 min
time difference = -45° * 4 min per degree = -180 minutes = -3 hours
Therefore the local time at a place 45°W longitude = 12:00 noon - 3 hours = 9:00 am
similarity between weathering and mass wasting
Answer:
Both processes occur in place. No movement is involved in weathering. As soon as a rock particle (loosened by one of the two weathering processes) moves, we call it erosion or mass wasting. Mass wasting is simply movement down slope due to gravity.
