Science, asked by guptaposhita71, 6 months ago

PLEASE HELP PLEASE HELP ​

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Answered by baladesigns2007
1

Answer:

1.True

2. True

3. False; Most elements are not found in a free state in nature.

4. False; The percentage of oxygen in the earth's crust is 46.6%

5. True

6. True

7. False

Explanation:

Hope it helps you :)

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