Question

what are a) normal element b) harmful element​

Answer 1

Answer:

: 1 normal animals means elements with do not give out any harmful radiation

2 harmful animals means elements which give out harmful radiation

Explanation:

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Answer 2

Answer:

1. Normal elements means which do not give out any harmful radiation. For example = oxygen and helium.

2. Harmful radiation means element which give out harmful radiation. For example = radium and uranium.

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