Question

1. what is atmospheric pressure?

answer :​

Answer 1

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Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. 

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Answer 2

Hii Mate

ᴀɴsᴡᴇʀ : ᴀᴛᴍᴏsᴘʜᴇʀɪᴄ ᴘʀᴇssᴜʀᴇ ɪs 'ғᴏʀᴄᴇ ᴘᴇʀ ᴜɴɪᴛ ᴀʀᴇᴀ ᴇxᴇʀᴛᴇᴅ ᴀɢᴀɪɴsᴛ ᴀ sᴜʀғᴀᴄᴇ ʙʏ ᴛʜᴇ ᴡᴇɪɢʜᴛ ᴏғ ᴀɪʀ ᴀʙᴏᴠᴇ ᴛʜᴀᴛ sᴜʀғᴀᴄᴇ.

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