Question

$\huge \underline\blue{⍨ǫᴜᴇsᴛɪᴏɴ..!!}$



ᴡʜᴀᴛ ɪs ᴀᴛᴍᴏsᴘʜᴇʀᴇ..!?​

Answer 1

Answer:

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low. 

Answer 2

ᴀɴ ᴀᴛᴍᴏsᴘʜᴇʀᴇ (ғʀᴏᴍ ᴛʜᴇ ɢʀᴇᴇᴋ ᴡᴏʀᴅs ἀτμός (ᴀᴛᴍᴏs), ᴍᴇᴀɴɪɴɢ 'ᴠᴀᴘᴏᴜʀ', ᴀɴᴅ σφαῖρα (sᴘʜᴀɪʀᴀ), ᴍᴇᴀɴɪɴɢ 'ʙᴀʟʟ' ᴏʀ 'sᴘʜᴇʀᴇ' ɪs ᴀ ʟᴀʏᴇʀ ᴏʀ ᴀ sᴇᴛ ᴏғ ʟᴀʏᴇʀs ᴏғ ɢᴀsᴇs sᴜʀʀᴏᴜɴᴅɪɴɢ ᴀ ᴘʟᴀɴᴇᴛ ᴏʀ ᴏᴛʜᴇʀ ᴍᴀᴛᴇʀɪᴀʟ ʙᴏᴅʏ, ᴛʜᴀᴛ ɪs ʜᴇʟᴅ ɪɴ ᴘʟᴀᴄᴇ ʙʏ ᴛʜᴇ ɢʀᴀᴠɪᴛʏ ᴏғ ᴛʜᴀᴛ ʙᴏᴅʏ. ᴀɴ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ɪs ᴍᴏʀᴇ ʟɪᴋᴇʟʏ ᴛᴏ ʙᴇ ʀᴇᴛᴀɪɴᴇᴅ ɪғ ᴛʜᴇ ɢʀᴀᴠɪᴛʏ ɪᴛ ɪs sᴜʙᴊᴇᴄᴛ ᴛᴏ ɪs ʜɪɢʜ ᴀɴᴅ ᴛʜᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴏғ ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ɪs ʟᴏᴡ.

ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ᴏғ ᴇᴀʀᴛʜ ɪs ᴄᴏᴍᴘᴏsᴇᴅ ᴏғ ɴɪᴛʀᴏɢᴇɴ (ᴀʙᴏᴜᴛ 78%), ᴏxʏɢᴇɴ (ᴀʙᴏᴜᴛ 21%), ᴀʀɢᴏɴ (ᴀʙᴏᴜᴛ 0.9%), ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ (0.04%) ᴀɴᴅ ᴏᴛʜᴇʀ ɢᴀsᴇs ɪɴ ᴛʀᴀᴄᴇ ᴀᴍᴏᴜɴᴛs. ᴏxʏɢᴇɴ ɪs ᴜsᴇᴅ ʙʏ ᴍᴏsᴛ ᴏʀɢᴀɴɪsᴍs ғᴏʀ ʀᴇsᴘɪʀᴀᴛɪᴏɴ; ɴɪᴛʀᴏɢᴇɴ ɪs ғɪxᴇᴅ ʙʏ ʙᴀᴄᴛᴇʀɪᴀ ᴀɴᴅ ʟɪɢʜᴛɴɪɴɢ ᴛᴏ ᴘʀᴏᴅᴜᴄᴇ ᴀᴍᴍᴏɴɪᴀ ᴜsᴇᴅ ɪɴ ᴛʜᴇ ᴄᴏɴsᴛʀᴜᴄᴛɪᴏɴ ᴏғ ɴᴜᴄʟᴇᴏᴛɪᴅᴇs ᴀɴᴅ ᴀᴍɪɴᴏ ᴀᴄɪᴅs; ᴀɴᴅ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ɪs ᴜsᴇᴅ ʙʏ ᴘʟᴀɴᴛs, ᴀʟɢᴀᴇ ᴀɴᴅ ᴄʏᴀɴᴏʙᴀᴄᴛᴇʀɪᴀ ғᴏʀ ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs. ᴛʜᴇ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ʜᴇʟᴘs ᴛᴏ ᴘʀᴏᴛᴇᴄᴛ ʟɪᴠɪɴɢ ᴏʀɢᴀɴɪsᴍs ғʀᴏᴍ ɢᴇɴᴇᴛɪᴄ ᴅᴀᴍᴀɢᴇ ʙʏ sᴏʟᴀʀ ᴜʟᴛʀᴀᴠɪᴏʟᴇᴛ ʀᴀᴅɪᴀᴛɪᴏɴ, sᴏʟᴀʀ ᴡɪɴᴅ ᴀɴᴅ ᴄᴏsᴍɪᴄ ʀᴀʏs. ᴛʜᴇ ᴄᴜʀʀᴇɴᴛ ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ᴏғ ᴛʜᴇ ᴇᴀʀᴛʜ's ᴀᴛᴍᴏsᴘʜᴇʀᴇ ɪs ᴛʜᴇ ᴘʀᴏᴅᴜᴄᴛ ᴏғ ʙɪʟʟɪᴏɴs ᴏғ ʏᴇᴀʀs ᴏғ ʙɪᴏᴄʜᴇᴍɪᴄᴀʟ ᴍᴏᴅɪғɪᴄᴀᴛɪᴏɴ ᴏғ ᴛʜᴇ ᴘᴀʟᴇᴏᴀᴛᴍᴏsᴘʜᴇʀᴇ ʙʏ ʟɪᴠɪɴɢ ᴏʀɢᴀɴɪsᴍs.

ᴀ sᴛᴇʟʟᴀʀ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ɪs ᴛʜᴇ ᴏᴜᴛᴇʀ ʀᴇɢɪᴏɴ ᴏғ ᴀ sᴛᴀʀ ᴀɴᴅ ᴛʏᴘɪᴄᴀʟʟʏ ɪɴᴄʟᴜᴅᴇs ᴛʜᴇ ᴘᴏʀᴛɪᴏɴ ᴀʙᴏᴠᴇ ᴛʜᴇ ᴏᴘᴀǫᴜᴇ ᴘʜᴏᴛᴏsᴘʜᴇʀᴇ. sᴛᴀʀs ᴡɪᴛʜ sᴜғғɪᴄɪᴇɴᴛʟʏ ʟᴏᴡ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇs ᴍᴀʏ ʜᴀᴠᴇ ᴏᴜᴛᴇʀ ᴀᴛᴍᴏsᴘʜᴇʀᴇs ᴡɪᴛʜ ᴄᴏᴍᴘᴏᴜɴᴅ ᴍᴏʟᴇᴄᴜʟᴇs.

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