PLS HELP ME ON THIS ASAP

Ok so I’m not sure but I think answer is:

Constructive interference occurs when waves cross over each other and combine into one crest.When this happens, the amplitude increases. Destructive interference occurs when the waves overlap and becomes flat.The waves cancel each other out.

Blank number one: Constructive

Blank number two:  Increases

Blank number three: Destructive

Blank number four: cancel

260 miles per hour

explanation:

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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