Abiotic cycles Test

Front

What is decomposition in the context of abiotic cycles?

Back

Decomposition is the process by which organic substances are broken down into simpler organic or inorganic matter, playing a crucial role in nutrient cycling.

Front

Which abiotic cycle does not involve decomposition?

Back

The water cycle.

Front

What role do nitrogen-fixing bacteria play in the nitrogen cycle?

Back

They convert nitrogen gas into ammonia, making nitrogen available for plants.

Front

How does phosphorus primarily move from land to bodies of water?

Back

Through runoff.

Front

What process releases phosphorus from rocks?

Back

Weathering.

Front

How do producers and consumers interact in the carbon cycle?

Back

Producers take in carbon dioxide through photosynthesis, and consumers release it through cellular respiration.

Front

What is the significance of the carbon cycle in ecosystems?

Back

It regulates the flow of carbon among the atmosphere, land, and oceans, supporting life.

Front

Define the nitrogen cycle.

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including nitrogen gas, ammonia, nitrates, and organic nitrogen.

Front

What is runoff in the context of abiotic cycles?

Back

Runoff is the flow of water, from rain or melting snow, that moves across the land and into bodies of water, carrying nutrients like phosphorus.

Front

Explain the term 'weathering' in relation to abiotic cycles.

Back

Weathering is the process that breaks down rocks and minerals, releasing nutrients like phosphorus into the soil and water.