Noun, する verb, and の adjective
はいしゅつ
植物は二酸化炭素を吸収し、酸素を排出します。
Plants absorb carbon dioxide and give off oxygen.
The things I reject and make exit from (my factory) is my emissions. Poof poof poof.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.