Geologists have used two main types of evidence to learn about Earth's interior: direct evidence from rock samples and indirect evidence from seismic waves.
Amazon rainforest in Brazil
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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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.
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.