Which of the following is NOT an example of deposition? sand dune
river delta
cave crystal
valley
This science btw

Cave Crystal

Explanation:

I believe it's cave crystal because sand dunes, river deltas, and valleys are all examples of deposition.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.