Historically, the earth’s ocean had a ph of 8.2. in recent years it dropped to 8.1. how might this affect the ocean environment

In lost of biodiversity.

Explanation:

There are some living things that are so sensible of changing of temperature or pH, in this way some plants, animals or protozoa can die, in this way the food chain that they belong would be different, affecting another living things. so at the end can be the result of lost of biodiversity.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.