Which are causes of mechanical weathering? check all that apply.1 acid rain2 plant growth3 animal actions4 carbon dioxide5 pressure release

The answer is plant growth, animal actions, and pressure release.

Explanation:

I’m my lecture, it gave me a list of mechanical and weathering stuff so, you know it is right. :) hope this helped

Explanation:

The mechanism of the reaction is shown in the diagram below. From the reaction, when (2S,3S)-2-Bromo-3-phenylbutane undergoes a reaction with sodium ethoxide (ETONa), the E2 elimination reaction is put into place. Here, the H and the leaving group are antiperiplanar to one another and the reaction mechanism proceeds to form an isomeric (E)-2-phenyl-2butane as the major product.