Oxygen Cycle

Front

What is the process by which plants produce oxygen from carbon dioxide, water, and sunlight?

Back

Photosynthesis

Front

What percentage of the human body is composed of oxygen?

Back

65%

Front

True or False: Fish breathe hydrogen, not oxygen.

Back

False

Front

What are the tiny plants that live near the surface of the ocean and produce a lot of oxygen?

Back

Phytoplankton

Front

What process uses oxygen through the burning of fuels like wood and coal?

Back

Combustion

Front

Define the term 'Oxygen Cycle'.

Back

The Oxygen Cycle is the biogeochemical cycle that describes the movement of oxygen within its three main reservoirs: the atmosphere, the biosphere, and the lithosphere.

Front

What role do phytoplankton play in the oxygen cycle?

Back

Phytoplankton produce a significant amount of the Earth's oxygen through photosynthesis.

Front

What is respiration in the context of the oxygen cycle?

Back

Respiration is the process by which living organisms convert oxygen and glucose into energy, releasing carbon dioxide and water as byproducts.

Front

What is the significance of the combustion process in the oxygen cycle?

Back

Combustion releases carbon dioxide into the atmosphere, which is then used by plants during photosynthesis.

Front

How does deforestation impact the oxygen cycle?

Back

Deforestation reduces the number of trees available to perform photosynthesis, leading to decreased oxygen production.