Cycles in Nature Review 2021

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes such as evaporation, condensation, and precipitation.

Front

What are the three main processes of the water cycle?

Back

Evaporation, condensation, and precipitation.

Front

What is condensation in the water cycle?

Back

Condensation is the process where water vapor cools and changes back into liquid water, forming clouds.

Front

What is evaporation in the water cycle?

Back

Evaporation is the process where liquid water is heated and changes into water vapor, rising into the atmosphere.

Front

What is precipitation in the water cycle?

Back

Precipitation is any form of water, such as rain, snow, sleet, or hail, that falls from the atmosphere to the Earth's surface.

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms.

Front

Why is nitrogen important for living organisms?

Back

Nitrogen is essential for the production of amino acids, which are the building blocks of proteins and nucleic acids like DNA.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process by which certain bacteria convert nitrogen gas from the atmosphere into a form that plants can use.

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria are crucial in the nitrogen cycle as they help in nitrogen fixation and the decomposition of organic matter, returning nitrogen to the soil.

Front

What is the significance of water being the only substance that exists in three states on Earth?

Back

Water's ability to exist as a solid (ice), liquid (water), and gas (water vapor) is essential for various natural processes and supports life.