Question : In which layer of the atmosphere do the meteorites burn up on entering from space?
Option 1: Stratosphere
Option 2: Thermosphere
Option 3: Mesosphere
Option 4: Exosphere
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Correct Answer: Mesosphere
Solution : The correct option is the Mesosphere.
Meteorites burn up in the mesosphere, the third layer of Earth's atmosphere. As they enter space, friction with air molecules at high speeds causes intense heating, leading to their combustion. This layer acts as a shield, protecting the Earth's surface from many incoming meteoroids.
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Question : In the atmosphere, the lowermost layer is _______.
Option 1: troposphere
Option 2: exosphere
Option 3: ionosphere
Option 4: stratosphere
Question : Which of the following statements is not correct regarding the stratosphere?
Option 1: It lies above the mesosphere
Option 2: It extends up to a height of 50 km
Option 3: It contains a layer of ozone gas
Option 4: This layer is almost free from clouds.
Question : The temperature increases rapidly above:
Option 1: Ionosphere
Option 2: Exosphere
Option 3: Stratosphere
Option 4: Troposphere
Question : A star appears twinkling in the sky because of :
Option 1: scattering of light by atmosphere
Option 2: reflection of light by atmosphere
Option 3: refraction of light by atmosphere
Option 4: diffraction of light by atmosphere
Question : Where do most of the weather phenomena take place?
Option 2: Troposphere
Option 4: Tropopause
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