Is an earthquake biotic or abiotic?

an earthquake is abiotic

Explanation: An earthquake is not “alive” and it was never alive in the first place. That is the definition of abiotic

Natural disasters, such as earthquakes, volcanoes, and forest fires, are also abiotic factors.

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.