Top Week - SCIENCE

Match each cycle with its key process: Nitrogen cycle

• photosynthesis

• nitrogen fixation

• rock weathering

• volcanic eruption

Match each cycle with its key process: Carbon cycle

• photosynthesis

• nitrogen fixation

• rock weathering

• volcanic eruption

Match each cycle with its key process: sulfur cycle

• photosynthesis

• nitrogen fixation

• rock weathering

• volcanic eruption

Match each cycle with its key process: phosphorus cycle

• photosynthesis

• nitrogen fixation

• rock weathering

• volcanic eruption

Match each cycle with its key process: phosphorus cycle

• photosynthesis

• nitrogen fixation

• rock weathering

• volcanic eruption

Match the following human impacts with the cycle they most affect: agricultural runoff

• Nitrogen cycle

• Carbon cycle

• phosphorus cycle

Match the following human impacts with the cycle they most affect: deforestation

• Nitrogen cycle

• Carbon cycle

• phosphorus cycle

Match the following human impacts with the cycle they most affect: fossil fuel burning

• Nitrogen cycle

• Carbon cycle

• phosphorus cycle

Which of the following is a key step in the water cycle?

• combustion

• evaporation

• denitrification

• decomposition

What is the role of plants in the carbon cycle?

• They release sulfur into the atmosphere.

• They fix atmospheric nitrogen.

• They absorb carbon dioxide during photosynthesis.

• They release nitrates into the soil.