Cycles of Matter

Multiple Choice

What are the 3 main processes of the water cycle?

• Sublimation, filtration, absorption
• Condensation, evaporation, filtration
• Evaporation, condensation, precipitation
• Precipitation, runoff, infiltration

Multiple Choice

How is water cycled through the biosphere?

• Water is cycled through the biosphere by photosynthesis and respiration.
• Water is cycled through the biosphere only through rivers and lakes.
• Water is cycled through the biosphere by human consumption and waste.
• Water is cycled through the biosphere through evaporation, condensation, precipitation, infiltration, and runoff.

Multiple Choice

What do producers do within the carbon cycle?

• Producers consume organic matter to obtain carbon for growth.
• Producers release carbon dioxide into the atmosphere during respiration.
• Producers break down organic matter into carbon dioxide through decomposition.
• Producers absorb carbon dioxide and convert it into organic matter through photosynthesis.

Multiple Choice

What is the role of consumers within the carbon cycle?

• Consumers are the primary producers in the carbon cycle.
• Consumers release carbon dioxide into the atmosphere through respiration.

• Consumers do not interact with organic matter in the carbon cycle.
• Consumers absorb carbon dioxide during photosynthesis.

Multiple Choice

What is the role of decomposers within the carbon cycle?

• Decomposers only affect the nitrogen cycle.
• Decomposers produce oxygen through photosynthesis.
• Decomposers recycle carbon by breaking down dead matter.

• Decomposers store carbon in their bodies for long periods.

Multiple Choice

How are the carbon and oxygen cycles related in an ecosystem?

• Carbon and oxygen cycles are independent and do not interact.
• Photosynthesis releases carbon dioxide without using oxygen.
• Respiration occurs only in plants, not in animals.
• Photosynthesis and respiration, where plants and animals exchange carbon dioxide and oxygen.

Open Ended

What is one way that humans impact the amount of CO2 in the atmosphere?

Multiple Choice

How does bacteria contribute to the nitrogen cycle?

• Bacteria fixes nitrogen in the atmosphere.

• Bacteria convert sulfur into nitrogen compounds.
• Bacteria produce oxygen during photosynthesis.
• Bacteria decompose organic matter into carbon dioxide.

Multiple Choice

How do producers use nitrogen?

• Producers use nitrogen to synthesize proteins and nucleic acids essential for growth.
• Producers use nitrogen to absorb sunlight for growth.
• Producers use nitrogen to create carbon dioxide for respiration.
• Producers use nitrogen to produce energy through photosynthesis.

Multiple Choice

How do decomposers contribute to the nitrogen cycle?

• Decomposers break down organic matter and release nitrogen in the form of ammonium.

• Decomposers convert nitrogen gas into organic matter.
• Decomposers absorb nitrogen directly from the atmosphere.
• Decomposers prevent nitrogen from entering the soil.