Which of the following statements is an observation

D.

Explanation:

This is the best example of an observation. Option D describes a situation that can easily be seen. The speaker is not making any conclusions based on bias, ideology or any preconceived notions. Instead, he is simply describing a situation as he witnesses it. Therefore, this is the best example of an observation.

an aneroid barometer is different from a mercury barometer in that it provides readings that increase as air pressure increases.

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answer; new zealand;