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artcher [175]
2 years ago
5

How does a contracting protostar convert gravitational potential energy into thermal energy?

Geography
1 answer:
s2008m [1.1K]2 years ago
4 0

The answer of how it is convert is the sun generates energy by slowly contracting in size; converting gravitational potential energy into thermal energy and this is called gravitational contraction.  Gravitational collapse is the narrowing of an astronomical object due to the effect of its own gravity, which tends to draw matter inward toward the center of gravity.

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What region of south america contains one of the world's largest rain forests
Allisa [31]
Amazon rainforest in Brazil
4 0
3 years ago
Why is the mesosphere colder than the thermosphere, even though it's closer to earth?
kykrilka [37]

Answer:

Mesosphere lies in between 50 to 80 km above the earth surface and due to low density gases escape easily and hence it is colder.

Explanation:

Mesosphere has the capacity to not absorb the infrared radiation that's why the gases reflected from the earth surface escape the layer of mesopause and goes inside the thermosphere.

In the thermosphere, even the minute atoms of gases ca be absorbed by the layer which increases the air temperature and the air rises up hence making thermosphere as the hottest layer in the atmosphere.

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4 0
2 years ago
What are the conventional and non-conventional sources of energy? Give examples.
AlekseyPX

NON CONVENTIONAL =

Energy generated by using wind, tides, solar geothermal heat and biomass including farm and animal waste as well as human excreta is known as non-conventional energy. All these sources are renewable or inexhaustible and do not cause environment pollution. More over they do not require heavy expenditure.

CONVENTIONAL=

Conventional energy means the energy source which is obtained from fixed reserves in nature like oil, gas and coal. In other words conventional energy is also termed as non-renewable energy sources, or fossil fuels.

8 0
3 years ago
Why are winter days colder than summer days? The sun is up for less time in the winter. The sun is farther away in the winter. T
Alex17521 [72]

Many people believe that the temperature becomes lower in winters and higher in summers because the Earth is closer to the sun in summer and farther from the sun in winter. In fact, the Earth is farthest from the sun in July and is closest to the sun in January. The main reason behind these temperature changes in different seasons is because the earth's axis is tilted. It is all about the tilt of the Earth's axis.

3 0
3 years ago
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