HYDRO and ATMO - sphere

What does the term "hydrosphere" refer to?

• All the land on our planet.

• All the water on our planet.

• All the living things on our planet.

• All the gases on our planet.

What is a key characteristic of the troposphere?

• It is the coldest layer of the atmosphere.

• It contains 80% of the air on the planet and all weather takes place there.

• It is where satellites fly around the planet.

• It is the highest level of the atmosphere before outer space.

Which layer of the atmosphere is known as the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which of the following is NOT considered part of the hydrosphere?

• Oceans

• Rivers

• Glaciers

• Clouds