If the KE is increased by 4 times what will be the velocity

velocity would doubled

Explanation:

As we know the k.e relation is given by

K.E= 0.5 m v^2

Keeping the mass same and increasing the k.e 4 times makes the velocity double.

the plateau is likely to turn into a desert do to corrosion.

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 .