Biogeochemical cycles

Front

What is transpiration?

Back

Transpiration is the process by which plants lose water vapor through small openings in their leaves called stomata.

Front

What process removes carbon dioxide from the atmosphere?

Back

Photosynthesis is the process that removes carbon dioxide from the atmosphere, as plants convert it into glucose using sunlight.

Front

How do volcanic eruptions affect atmospheric CO2 levels?

Back

Volcanic eruptions increase the levels of CO2 in the atmosphere by releasing carbon dioxide during eruptions.

Front

What gas do producers take in during the carbon cycle?

Back

Producers take in carbon dioxide during the carbon cycle.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process in which certain bacteria convert nitrogen gas from the atmosphere into ammonia.

Front

What is the role of decomposers in biogeochemical cycles?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for plants.

Front

Define the water cycle.

Back

The water cycle is the continuous process by which water evaporates from the Earth's surface, condenses in the atmosphere, and precipitates back to the surface.

Front

What is the significance of the phosphorus cycle?

Back

The phosphorus cycle is important for the growth of plants and animals, as phosphorus is a key component of DNA, RNA, and ATP.

Front

Explain the term 'biogeochemical cycle'.

Back

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

Front

What is the role of photosynthesis in the carbon cycle?

Back

Photosynthesis allows plants to absorb carbon dioxide from the atmosphere and convert it into organic matter, thus reducing atmospheric CO2 levels.