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EVALUATION
DIRECTIONS: Choose the letter of the correct answer.
1. Why does cool air sink?
A. It is denser than warm air.
B. It is less dense than warm air.
C. Its weight is equal to warm air.
D. Its weight is less than warm air.
2. What causes differences in air pressure?
A. Uneven heating of the Earth's surface
B. Equal heating of the Earth's surface
C. Cooling of the surroundings
D. Increasing of temperature
3. During daytime, which warms faster land or water?
A. land
B. water
4. Why does warm air rises?
A. it is hot
B. it is denser
C. both land and water
D. depending on the weather conditions
C. it is cold
D. it is less dense
5. Which of the following will cause wind or movement of air in our atmosphere?
A. Differences in altitude
B. Differences in pressure
C. Differences in temperature and altitude
D. Differences in temperature and pressure

Verified Answer :

GinnyAnswer

Final answer:

Cool air sinks due to being denser, air pressure differences are caused by the uneven heating of the Earth's surface, and warm air rises as it is less dense than cold air.


Explanation:

Cool air sinks because it is denser than warm air due to its lower temperature, causing it to have a higher mass per unit volume than warm air.

Differences in air pressure are caused by the uneven heating of the Earth's surface, leading to areas of high and low pressure that result in the formation of wind.

Warm air rises because it is less dense than cold air, initiating convection currents that lead to the circulation of air and the formation of wind.


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