What is air pressure?

• Air pressure is the force exerted by the weight of air in the atmosphere.
• Air pressure is the temperature of the air in the atmosphere.
• Air pressure is the humidity level in the atmosphere.
• Air pressure is the speed of the wind in the atmosphere.

The atmosphere is:

• The Earth system that is made up of a mixture of gases that is air.
• the solid outer layer of the Earth
• the liquid water on the Earth's surface
• the Earth's core

The biosphere is:

• a) The part of Earth where life exists
• b) A layer of gases surrounding the planet
• c) The solid outer section of the Earth
• d) A large body of saltwater

The geosphere is:

• the solid part of the Earth consisting of the crust and outer mantle
• the layer of gases surrounding the Earth
• the water bodies on Earth
• the living organisms on Earth

The hydrosphere is:

• the solid outer layer of the Earth
• the layer of gases surrounding the Earth
• the water component of the Earth
• the Earth's core

What is precipitation?

• A type of weather phenomenon
• A form of water that falls from clouds
• A process of evaporation
• A type of cloud formation

What is water vapor?

• A gas form of water
• A liquid form of water
• A solid form of water
• A chemical compound different from water

What is an air mass?

• A small body of air with varying temperature and humidity
• A large body of air with similar temperature and humidity
• A large body of water with similar temperature and humidity
• A small body of water with varying temperature and humidity

What is climate?

• The average weather conditions in a region over a long period of time
• The current weather conditions in a region
• The study of weather patterns
• The impact of human activities on weather

Prevailing winds are:

• winds that blow predominantly from a single general direction over a particular point on the Earth's surface
• winds that change direction frequently
• winds that are caused by local temperature differences
• winds that occur only during storms