The hypothesis that the fossil in layer d is younger than the fossil in layer c is supported by the a) law of gravity. b) law of relativity. c) law of superposition. d) law of thermodynamics.

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.