Answer:
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1) N₂ (gas) ; that is, nitrogen (gas) ; (about 78%);
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and:
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2) O₂ (gas) ; that is, oxygen (gas); (about 21%);
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followed by argon, carbon dioxide, and others.
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Answer: They are words that connect or join sentences, clauses, or phrases together.
They are words that show cause and effect to answer the questions, "Why it happened" and "What happened"
Explanation: Coordinating Conjunctions such as <em>and, but, or, yet </em> connect sentences, clauses and phrases.
Subordinating Conjunctions such as <em>although, because, so that, if, </em>show cause and effect.
OK! so some things you can do when you feel that way is to talk to someone about what or why you feel that way. Or you can get yourself in a good mood again by doing something you love or talking to someone you love. or if like you can stress-eat (it helps 50% of the time guaranteed!) or you can do something to get your mind off of your bad mood and play a game/videogame or watch tv and stuff like that. And what i got for you, this is what i did when i felt depressed! hope this helps!