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dezoksy [38]
3 years ago
8

Choose all the answers that apply.

Chemistry
2 answers:
yulyashka [42]3 years ago
8 0

Answer:1 2 and 4

Explanation:

d1i1m1o1n [39]3 years ago
4 0

Answer:

1. is made mostly of nitrogen

2. can be used to transmit radio signals

4. protects the earth from harmful radiation

Explanation:

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