The surface area of the earth's crust is 5.10*10^8km^2. the average thickness of the earth's crust is 35km. the mean density of the earth's crust is 2.8g/cm^3. the most abundant element in the earth's crust is oxygen with an abundance of 4.55*10^3g/t. calculate the total volume of the earth's crust.

The answer is .

Explanation:

You are asking only for the total volume, so the important data here is the surface area of the earth's crust,

and the average thickness of the earth's crust,

.

Imagine that you can stretch the surface area as if it were a blanket, now if you want to calculate its volume, you just need to multiply its area by its thickness,

.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it