Question

1. Which elements are present in air?

2. Is carbon dioxide an element?

3. Are the atoms of different elements
similar or dissimilar?​

Answer 1

Answer:

1- oxygen and nitrogen

2- no

3- dissimilar

Explanation:

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Answer 2

Answer:

1. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

2.no,carbon dioxide is not an element.

3.of course the atoms of different elements must be dissimilar.

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