Quiz on How Mountains Affect Winds

What happens when moist wind from the oceans blow towards a mountain?

• The air moves parallel to the mountain

• The air is forced to rise

• The air remains stagnant

• The air is forced to move downwards

Where does most rain fall when moist wind is forced to rise due to a mountain?

• On the leeward side of the mountain

• On the windward side of the mountain

• At the base of the mountain

• At the peak of the mountain

Why do South Africans prefer to have a home on the northern slopes of hills and mountains?

• Because the sun's rays strike the north-facing slopes almost vertically

• Because the south-facing slopes receive more rainfall

• Because the north-facing slopes are cooler

• Because the south-facing slopes are warmer

What type of rain occurs in Johannesburg due to warm air meeting cold air?

• Convectional rain

• Relief rain

• Frontal rain

• Tropical rain

What happens when warm air meets cold air in terms of rainfall?

• The cold air evaporates

• The warm air cools and condenses

• The warm air moves downwards

• The cold air is forced upwards

What is the main cause of frontal rain?

• Warm air meeting cold air

• Convectional heating of the Earth

• Forced ascent of wind

• Sun's rays striking the mountain

What is the primary influence of mountains on climate in terms of wind?

• Formation of tornadoes

• Forced ascent of wind

• Increase in wind temperature

• Decrease in wind speed

What is the main reason for the rain shadow effect on the leeward side of a mountain?

• Absence of rainfall on the leeward side

• Excessive rainfall on the leeward side

• Snowfall on the leeward side

• Strong winds on the leeward side

What happens to air when it rises due to a mountain?

• It warms up

• It becomes denser

• It cools down

• It remains at the same temperature

What is the primary reason for the formation of clouds when air rises over a mountain?

• Decrease in humidity

• Increase in pressure

• Cooling of the air

• Expansion of the air