MY TEACHER NEVER TAUGHT US THIS BUT SOMEHOW, EVERYONE ELSE IN THE CLASS KNOWS HOW TO DO THIS!!

Very very simple. simply subtract the water table elevation, from the surface elevation. So... for the first one do 90-70=20, and so on.

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Explanation:

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

hope this any more questions i am here plz mark brainliest

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above