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AysviL [449]
2 years ago
7

Which of the following will have the longest-term impact on organisms in a ecosystem?

Chemistry
1 answer:
bearhunter [10]2 years ago
8 0

Answer:

D. Global warming

Explanation:

Hope this Helps.

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<em>The correct option is B) two liquids are mixed at room temperature and a gas forms.</em>

Explanation:

A chemical change can be described as a change which results in the formation of a new substance by the reactants. In the option B, two liquids react  to form a new product which is a gas. Hence, it is an example of chemical change.

Other options,like option D, is not a chemical change as by crushing a solid no new product is formed. Option C is also not correct because as when salt dissolves in water, no new product is made.  

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