Why am i single? is it cuz im white?

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.