Biogeochemical Cycles Quiz

What are biogeochemical cycles primarily concerned with?

• The movement of gases in the atmosphere

• The movement of a particular form of matter through the living and nonliving parts of an ecosystem

• The reproduction cycles of animals

• The geological changes on Earth

According to the principles of biogeochemical cycles, why must essential nutrients be continuously cycled?

• Because the Earth is a closed system where matter can neither be created nor destroyed

• Because nutrients are unlimited in the ecosystem

• Because new nutrients are constantly being introduced from outer space

• Because nutrients can be destroyed over time

What is the primary driver of the water cycle?

• The moon

• The ocean

• The sun

• The wind

What is precipitation in the context of the water cycle?

• The process of water evaporating from the Earth's surface

• Water that falls to Earth as a liquid or solid

• The movement of water through living organisms

• The filtering of water through layers of rock

What does infiltration refer to in the water cycle?

• Water vapor turning into liquid water

• Water moving across the surface of the Earth

• Water seeping underground from the Earth's surface

• Water being absorbed by plants

What is the role of an aquifer in the water cycle?

• To store water in the atmosphere

• To transport water to the oceans

• To hold water in permeable rock underground

• To facilitate the evaporation of water

What is runoff in the water cycle?

• The process of water freezing into ice

• The evaporation of water from lakes and rivers

• The collection of water in underground caves

• Liquid water that doesn't infiltrate and collects in bodies of water

What process in the water cycle involves the sun heating liquid water, causing it to rise into the atmosphere as vapor?

• Condensation

• Transpiration

• Precipitation

• Evaporation

During which stage of the water cycle does water vapor rise back into the atmosphere from plants?

• Evaporation

• Condensation

• Transpiration

• Precipitation

What happens during the condensation stage of the water cycle?

• Water vapor rises from the ocean

• Water vapor forms clouds before precipitating again

• Water is absorbed by plants

• Water flows into rivers and lakes