G6 3.2

The density of cold dry air is .......... that of hot humid air.

• More than
• Equal to
• Less than
• Similar to

In rain shadow phenomenon, the dry side of a coastal mountain range is formed due to ..........

• Rising of humid air
• Rising of dry air
• Descending of humid air
• Descending of dry air

The side of coastal mountain ranges in which humid air moves up when hitting a mountain is the .......... side, while the other side is the .......... side.

• Wet - Dry
• Dry - Wet
• Dry - Dry
• Wet - Wet

To forecast the weather, the weather data are ..........

• Collected only
• Analyzed only
• Collected and analyzed
• Collected, analyzed, and put together

Land heats up .......... and cools off .......... compared to that of water.

• Quickly – quickly
• Slowly – slowly
• Quickly – slowly
• Slowly – quickly

If the temperature of the sand in a desert is 50°C at noon, its temperature may reach .......... °C at night.

• 20
• 60
• 70
• 80

The cold air is .......... and always ..........

• Less dense – Moves down
• Less dense – Moves up
• More dense – Moves up
• More dense – Moves down

Convection currents occur in the atmosphere when ..........

• Cold air rises up and warm air falls down
• Warm air rises up and cold air falls down
• Both cold air and warm air rise up
• Both cold air and warm air fall down

The increase in the amount of rain for a long period of time may cause ..........

• Flooding
• Sandstorm
• Drought
• Dust storm

Sandstorms blow up from a dry area such as a desert. (Ismailia 2024)

• TRUE
• FALSE