Question

Convection currents are driven by differences in?

•Mass
•Volume
•Density
•Weight

Answer 1

Answer: Density

Explanation: Convection usually happens when an object heats up, which causes its density to change, such as a lava lamp.

When the wax in a lava lamp heats up, the wax's density decreases due to the energy from the heat, causing it to rise in the liquid to the top, where it cools down and becomes more dense, then falls back to the bottom.

Answer 2

Density

Step-by-step explanation:

The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: {\displaystyle \rho ={\frac {m}{V}}} where ρ is the density, m is the mass, and V is the volume