Winds, Storms and Cyclones - Part 2 | Assessment | English | Grade 7

Warm air is _____ than cold air.

• heavier

• lighter

• equal

• Cannot be predicted

Answer explanation

Warm air is lighter than cold air.

The air at poles is _____ than the air at latitudes.

• colder

• hotter

• either colder or hotter

• Cannot be predicted

Answer explanation

The air at poles is colder than the air at latitudes.

The flow of wind in winter is ______ in comparison to the flow of wind in the summer.

• in same direction

• in reversed direction

• Cannot be predicted

Answer explanation

The flow of wind in winter is in reversed direction in comparison to the flow of wind in the summer. The wind flows from land to oceans in winter whereas it flows from oceans to the land in summer.

Why is the wind flow direction not in north-south direction?

• Because the wind is heavier in the start and slowly becomes lighter across the path it follows.

• Because the wind is lighter at start and slowly becomes heavier across the path it follows.

• Because of the rotation of earth.

• None of the above

Answer explanation

The winds would have flown in the north-south direction from north to south, or from south to north. A change in direction is however, caused by the rotation of the earth.

The winds from the ocean carry _____ to bring in the rain

• humidity

• hot air

• water

• cold breeze

Answer explanation

The winds from the oceans carry water and bring rain. It is a part of the water cycle.