A.The warm air is heavier
B.The warm air is denser
C.The warm air is less denser
D.Of convection
Related Mcqs:
- Where cold surface air replaces warm air, the boundary separating the different bodies of air is __________.
- Whale is warm-blooded animal but survives in cold seas. The main device for keeping the animal warm in thick:
- A first order system when subjected to a step input has a temperature rise of 25?C after one hour and 37.5?C after two hours, starting from cold conditions. The final steady temperature rise will be
- Heavy water is qualified as heavy because it is
- Fog that most often forms as warm rain falls into a cold layer of surface air is called __________?
- Two bodies one hot and the other cold are kept in vacuum. What will happen to the temperature of the hot body after sometime?
- Weather during the passage of a cold front is:
- The cold feeling that you experience after leaving a swimming pool on a hot, dry, summer day represents heat transfer by ______________.
- Often before sunrise on a clear, calm, cold morning, ice (frost) can be seen on the tops of parked cars, even when the air temperature is above freezing. This condition happens because the tops of the cars are cooled by __________.
- At sea level atmospheric pressure and room temperature
