Which type of cloud tends to be fluffy with a vertical appearance? Cumulus Stratus None of these Cirrus   2. Which term describes the circular movement of heat in fluids, including water and air, with warm molecules rising and cooler molecules falling? Radiation Conduction None of these Convection   3. Which atmospheric measurement is a measure of the force exerted by air molecules and measured in millibars or atmospheres using a barometer? Air pressure Wind Speed Temperature Humidity   4. Which term describes heat transfer by direct contact? Conduction Radiation Convection All of these

2. Which term describes the circular movement of heat in fluids, including water and air, with warm molecules rising and cooler molecules falling?