The pictures show four different surface features that have been created by destructive forces. A shows the land beside a body of water. B shows the effects of ground movement. C shows the change in a rock’s surface. D shows a land form. Identify each surface feature, and name the destructive process that caused the feature. Give a specific example (a place you know by name) of the surface features shown in A and D.

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.

what is the statement?