Air on the move

What are local winds?

• Local winds are only found in urban areas.

• Local winds are not influenced by geographic features.

• Local winds are winds that are influenced by local geographic features such as mountains, valleys, and bodies of water.

• Local winds are caused by global atmospheric circulation patterns.

Explain how sea breezes are formed.

• Sea breezes are formed by volcanic activity under the sea

• Sea breezes are caused by the rotation of the Earth

• Sea breezes are a result of air pollution near coastal areas

• Sea breezes are formed due to the temperature difference between the land and sea, creating a pressure gradient that causes air to move from the sea to the land.

Describe the process of land breezes.

• Land breezes occur during the day when the land heats up faster than the water.

• Land breezes are caused by a high-pressure area over the water and a low-pressure area over the land.

• Land breezes result in strong winds blowing from the sea to the land.

• Land breezes occur at night when the land cools down faster than the water, creating a high-pressure area over the land and a low-pressure area over the water. The air flows from the land to the sea, resulting in a gentle breeze.

What are planetary and permanent winds?

• Planetary winds are caused by the gravitational pull of the moon

• Planetary winds are caused by the Earth's magnetic field

• Planetary winds are caused by the rotation of the Earth and the position of the continents, while permanent winds are caused by the temperature differences between the equator and the poles.

• Permanent winds are caused by the rotation of the Earth

Differentiate between cyclones and anti-cyclones.

• Cyclones and anti-cyclones have the same wind direction.

• Anti-cyclones are low-pressure systems with inward spiraling winds.

• Cyclones are high-pressure systems with outward spiraling winds.

• Cyclones are low-pressure systems with inward spiraling winds, while anti-cyclones are high-pressure systems with outward spiraling winds.

Explain the structure of the atmosphere.

• The atmosphere is divided into three layers: troposphere, stratosphere, and ionosphere.

• The atmosphere is a single-layer structure.

• The atmosphere has only two layers: troposphere and stratosphere.

• The atmosphere is structured into five layers: troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

What is the composition of air in the atmosphere?

• Nitrogen (70%), Oxygen (30%), Other gases (1%)

• Carbon dioxide (78%), Oxygen (21%), Other gases (1%)

• Hydrogen (78%), Oxygen (21%), Other gases (1%)

• Nitrogen (78%), Oxygen (21%), Other gases (1%)

Why is the atmosphere important?

• The atmosphere is important for providing food

• The atmosphere is important for regulating emotions

• The atmosphere is important for enabling time travel

• The atmosphere is important for providing air, regulating temperature, protecting from radiation, and enabling weather patterns.

Give examples of periodic winds.

• Trade winds, westerlies, monsoons

• Hurricanes

• Tropical storms

• Polar winds

Discuss the wind system.

• Wind is solely influenced by ocean currents

• The wind system is driven by the differential heating of the Earth's surface, resulting in the movement of air masses and the formation of distinct wind patterns.

• Wind patterns are determined by the migration of birds

• The wind system is caused by the rotation of the moon