Question

fill in the blank
water + =oxygen​

Answer 1

Explanation:

noun

one of the two times in the year (around 20 March and 22 September) when the sun is above the imagined line round the centre of the earth (equator) and day and night are of equal length

Answer 2

Aʟᴛʜᴏᴜɢʜ ᴡᴀᴛᴇʀ ᴍᴏʟᴇᴄᴜʟᴇs ᴄᴏɴᴛᴀɪɴ ᴀɴ ᴏxʏɢᴇɴ ᴀᴛᴏᴍ﹐ ᴛʜɪs ᴏxʏɢᴇɴ ɪs ɴᴏᴛ ᴡʜᴀᴛ ɪs ɴᴇᴇᴅᴇᴅ ʙʏ ᴀϙᴜᴀᴛɪᴄ ᴏʀɢᴀɴɪsᴍs ʟɪᴠɪɴɢ ɪɴ ɴᴀᴛᴜʀᴀʟ ᴡᴀᴛᴇʀs. A sᴍᴀʟʟ ᴀᴍᴏᴜɴᴛ ᴏғ ᴏxʏɢᴇɴ﹐ ᴜᴘ ᴛᴏ ᴀʙᴏᴜᴛ ᴛᴇɴ ᴍᴏʟᴇᴄᴜʟᴇs ᴏғ ᴏxʏɢᴇɴ ᴘᴇʀ ᴍɪʟʟɪᴏɴ ᴏғ ᴡᴀᴛᴇʀ﹐ ɪs ᴀᴄᴛᴜᴀʟʟʏ ᴅɪssᴏʟᴠᴇᴅ ɪɴ ᴡᴀᴛᴇʀ.