Question

What is an Atmosphere???​

Answer 1

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ᴀɴ ᴀᴛᴍᴏꜱᴘʜᴇʀᴇ ɪꜱ ᴀ ʟᴀʏᴇʀ ᴏʀ ᴀ ꜱᴇᴛ ᴏꜰ ʟᴀʏᴇʀꜱ ᴏꜰ ɢᴀꜱᴇꜱ ꜱᴜʀʀᴏᴜɴᴅɪɴɢ ᴀ ᴘʟᴀɴᴇᴛ ᴏʀ ᴏᴛʜᴇʀ ᴍᴀᴛᴇʀɪᴀʟ ʙᴏᴅʏ, ᴛʜᴀᴛ ɪꜱ ʜᴇʟᴅ ɪɴ ᴘʟᴀᴄᴇ ʙʏ ᴛʜᴇ ɢʀᴀᴠɪᴛʏ ᴏꜰ ᴛʜᴀᴛ ʙᴏᴅʏ. ᴀɴ ᴀᴛᴍᴏꜱᴘʜᴇʀᴇ ɪꜱ ᴍᴏʀᴇ ʟɪᴋᴇʟʏ ᴛᴏ ʙᴇ ʀᴇᴛᴀɪɴᴇᴅ ɪꜰ ᴛʜᴇ ɢʀᴀᴠɪᴛʏ ɪᴛ ɪꜱ ꜱᴜʙᴊᴇᴄᴛ ᴛᴏ ɪꜱ ʜɪɢʜ ᴀɴᴅ ᴛʜᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴏꜰ ᴛʜᴇ ᴀᴛᴍᴏꜱᴘʜᴇʀᴇ ɪꜱ ʟᴏᴡ.

Answer 2

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The atmosphere is composed of gases, water vapour and dust particles. The proportion of gases changes in the higher layers of the atmosphere in such a way that oxygen will be almost in negligible quantity at the height of 120 km.

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