Question

3. Hot air _____________ and cold air _____________ due to ___________.
*
1 point
falls; rises; gravity
rises; falls; gravity
rises; falls; bouyancy
falls; rises; bouyancy
4. Convection does NOT occur in
*
1 point
gases
liquids
solids
fluids

Answer 1

3. Hot air **rises** and cold air **falls** due to **gravity**.

4. Convection does NOT occur in **solids**.