Many of the whales in the ocean rely upon tiny marine organisms, called plankton, for food. if all of the plankton suddenly died, what might happen to the whales? a.
they would start eating fish.
b.
they would not survive either.
c.
they would go into hibernation.
d.
nothing would change.

I believe the answer to be B.

Explanation:

Without food, the whales would die.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it