Lakes can form:. a. when soil becomes supersaturated
b. during hurricane activity
c. because of a collapsed volcanic caldera or subsidence caused by rifting
d. as a result of the deposition of valley walls or subsidence caused by convergence.

D

Explanation:

Idrk know how to explain this but um basically deposition of valley walls will create a river-like path which over the years creates a river I think. I just used process of elimination tbh... Hurricanes don't make rivers so B definetley isn't the correct answer. A collapsed volcanic caldera has legit nothing to do with rivers so thats a no for C. and that leaves A and D and if you poor like 100 whole jugs of water into soil its not going to create a river which leaves B as the only answer that makes sense. (I hope this somewhat helps, if need be I can try to elaborate more in the comments)

seismic wave -

an elastic wave in the earth produced by an earthquake or other means.

explanation:

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;