The overuse of fertilizer can cause algal blooms? How do algal blooms affect a body of water? A) Algal blooms cause dissolved oxygen levels to decrease
B) Algal blooms cause dissolved nitrogen levels to decrease
C) Algal blooms cause dissolved nitrogen levels to increase
D) Algal blooms cause dissolved oxygen levels to increase

A algal bloom causes the dissolved oxygen level to decrease.

Explanation:

It does mot allow the oxygen from atmosphere to dissolve into the water moreover it blocks the sunlight to reach to the sea plants that produces oxygen by photosynthesis.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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