Matter and Energy in Ecosystems Test 2024

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose, using carbon dioxide and water.

Front

Which organisms carry out photosynthesis in a forest ecosystem?

Back

Plants are the organisms that carry out photosynthesis in a forest ecosystem.

Front

What human activity disrupts the carbon cycle?

Back

Burning fossil fuels disrupts the carbon cycle by increasing carbon dioxide levels in the atmosphere.

Front

What is evaporation in the water cycle?

Back

Evaporation is the process by which water changes from a liquid to a gas (water vapor) due to heat energy.

Front

What role does the sun play in the water cycle?

Back

The sun provides heat energy for evaporation, which is essential for the water cycle.

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

Front

How do decomposers contribute to ecosystems?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and helping to recycle matter in ecosystems.

Front

What is the difference between producers and consumers?

Back

Producers (like plants) create their own food through photosynthesis, while consumers (like animals) obtain energy by eating other organisms.

Front

What is runoff in the water cycle?

Back

Runoff is the flow of water, from rain or melting snow, over the ground surface and into bodies of water.

Front

What is condensation in the water cycle?

Back

Condensation is the process by which water vapor cools and changes back into liquid water, forming clouds.