What does the biosphere include?

• All of the land on Earth, including mountains and caves

• All of the living things on Earth

• All of the water on Earth, including rivers and oceans

• The air surrounding Earth

Which layer of Earth is made of the crust and the brittle upper part of the mantle, and is broken into tectonic plates?

• Biosphere

• Atmosphere

• Lithosphere

• Hydrosphere

What is an example of the geosphere?

• Rivers and oceans

• The air we breathe

• The Grand Canyon

• Lions and trees

How do the Earth's spheres work together as a system?

• They operate independently without affecting each other.

• They are a set of things working together, and disrupting one sphere affects the others.

• They are separate layers that do not interact.

• They only interact during natural disasters.

Which of the following is included in the hydrosphere?

• Mountains and hills

• Freshwater and saltwater

• Air surrounding Earth

• Living organisms like plants and animals

What is the greenhouse effect?

• The process of trapping the Sun's energy using gases like water vapor and carbon dioxide, making life on Earth possible.

• The process of cooling the Earth's surface by reflecting sunlight back into space.

• The process of creating greenhouses to grow plants.

• The process of reducing carbon dioxide levels in the atmosphere.

What could happen if we keep burning greenhouse gases?

• The Earth could trap more heat as a result of the greenhouse effect.

• The Earth would cool down significantly.

• The greenhouse effect would stop completely.

• The atmosphere would lose all its gases.

What does 'interdependent' mean?

• Two or more things depending on each other.

• Something that works independently.

• A process that happens automatically.

• A system that does not rely on anything else.

What is an example of interdependence among Earth's spheres?

• Cutting down trees in the geosphere can affect the biosphere by causing habitat loss.

• The biosphere and geosphere work independently of each other.

• The atmosphere is not connected to the hydrosphere.

• The geosphere does not affect the biosphere in any way.

What does the prefix 'bio' mean?

• Life

• Water

• Earth

• Air