Biogeochemical Cycles Flashcard

Front

What is the main source of energy for the water cycle?

Back

Sunlight

Front

Which element is cycled without the aid of decomposers?

Back

Carbon

Front

How does Carbon in a grass plant get into a lion?

Back

The carbon is in the food the lion eats.

Front

Ammonium (NH4+) are converted to nitrate (NO3-) and nitrite (NO2-) through which process?

Back

Nitrification

Front

Which element is essential for the growth and development of organisms?

Back

Phosphorus

Front

Define biogeochemical cycle.

Back

A biogeochemical cycle is the movement of elements and compounds through living organisms and the environment.

Front

What role do decomposers play in the nitrogen cycle?

Back

Decomposers break down organic matter, releasing nitrogen back into the soil.

Front

Explain the process of photosynthesis in relation to the carbon cycle.

Back

Photosynthesis allows plants to absorb carbon dioxide from the atmosphere and convert it into organic matter.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting atmospheric nitrogen (N2) into a form usable by plants.

Front

Describe the role of the sun in the water cycle.

Back

The sun provides energy for evaporation, which is the first step in the water cycle.