Combustion engines, like those in cars and trucks, are propelled by the burning of gasoline. Of what is this evidence?

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 .

when it gains or loses electrons

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.