Which of the following is not a long-term consequence of mining on the earth? a) erosion b) an open pit c) sedimentation d) environmental degradation e) none of the above

I think all these answers a interlinked. They lead to some kind of longterm effect on the earth. For example, an open pit can collapse sue to rain, water or wind eroding its sides causing the pit to collapse. Mining makes the environment look unpleasant or less appealing, Environmental degradation. The ANSWER IS E none of the above.

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.