Ecosystems and Cycles Quiz

What do glaciers, diamonds, and liquid nitrogen have in common according to the lesson?

• They are all man-made materials.

• They are all found in the ocean.

• They are all made of substances necessary for life.

• They are all living organisms.

What is the primary difference between a biome and an ecosystem?

• An ecosystem is larger than a biome.

• A biome is smaller than an ecosystem.

• A biome contains only one type of organism.

• An ecosystem is a part of a biome where organisms interact closely.

Which of the following is NOT considered an abiotic factor in an ecosystem?

• Temperature

• Animals

• Soil

• Water

What process allows water to move from plants back into the atmosphere?

• Evaporation

• Transpiration

• Condensation

• Precipitation

How does the water cycle contribute to ecosystems?

• By creating new landforms.

• By delivering fresh water to living organisms.

• By providing a habitat for fish.

• By producing oxygen.

What is the role of carbon in living organisms?

• It is a waste product of photosynthesis.

• It is used to build cell walls.

• It provides energy directly to cells.

• It forms the basis of proteins, DNA, and carbohydrates.

Which process in the carbon cycle involves plants using carbon dioxide to produce food?

• Combustion

• Decomposition

• Photosynthesis

• Respiration

What is nitrogen fixation?

• The process of nitrogen being absorbed by plants.

• The conversion of nitrogen into ammonia or nitrates by bacteria.

• The breakdown of nitrogen compounds in animals.

• The release of nitrogen gas into the atmosphere.

Why is the nitrogen cycle important for ecosystems?

• It helps in the formation of rocks.

• It produces oxygen for the atmosphere.

• It provides nitrogen necessary for plant and animal growth.

• It regulates the Earth's temperature.

What do the water, carbon, and nitrogen cycles have in common?

• They all occur only in aquatic environments.

• They all involve the transformation of energy.

• They all produce new elements.

• They all help maintain balance within ecosystems.