Hydrological Cycle

Front

What is the hydrological cycle?

Back

The hydrological cycle, also known as the water cycle, is the continuous movement of water on, above, and below the surface of the Earth. It includes processes such as evaporation, condensation, precipitation, and infiltration.

Front

What percentage of Earth's water is found in the ocean?

Back

97% of the Earth's water is located in the ocean.

Front

What is point source pollution?

Back

Point source pollution refers to contaminants that enter a water body from a single, identifiable source, such as a pipe or a drain.

Front

What is non-point source pollution?

Back

Non-point source pollution comes from multiple sources and is not easily traced to a single point, such as runoff from agricultural fields or urban areas.

Front

Give an example of point source pollution.

Back

An example of point source pollution is a factory discharging waste into a river.

Front

Give an example of non-point source pollution.

Back

An example of non-point source pollution is fertilizers washing off from lawns into nearby streams.

Front

What is pollution?

Back

Pollution is the introduction of harmful materials into the environment, affecting air, water, and land.

Front

How does pollution affect living organisms?

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Pollution can harm plants, animals, and humans by contaminating their habitats and food sources.

Front

What is evaporation in the hydrological cycle?

Back

Evaporation is the process where water changes from a liquid to a gas (water vapor) due to heat.

Front

What is condensation in the hydrological cycle?

Back

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