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Q1. Would you expect Dissolved Oxygen in water taken from the stream entering a lake to be higher or lower than Dissolved Oxygen taken from the lake itself? Give details.

Q2. Jams, Jellies, preserves, honey, and other foodstuffs with high sugar content hardly ever become contaminated by bacteria, still when the food containers are left open at room temperature. This is since bacteria that encounter such an environment?

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Category:- Biology
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