Question

find the definitions of troposphere , mesosphere, stratosphereand thermosphere ​

Answer 1

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✒ ᴛʀᴏᴘᴏsᴘʜᴇʀᴇ - The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols.

✒ ᴍᴇsᴏsᴘʜᴇʀᴇ - The mesosphere is a layer of Earth's atmosphere. The mesosphere is directly above the stratosphere and below the thermosphere. It extends from about 50 to 85 km (31 to 53 miles) above our planet. Temperature decreases with height throughout the mesosphere. ... Most meteors vaporize in the mesosphere.

✒ sᴛʀᴀᴛᴏsᴘʜᴇʀᴇᴀɴᴅ - The part of the earth's atmosphere which extends from the top of the troposphere to about 30 miles (50 kilometers) above the surface and in which temperature increases gradually to about 32° F (0° C) and clouds rarely form.

✒ ᴛʜᴇʀᴍᴏsᴘʜᴇʀᴇ - the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium. The thermosphere is characterized throughout by an increase in temperature with height.