Earth's Systems and Me

Front

What is blue water?

Back

Blue water refers to freshwater resources found in rivers, lakes, and aquifers that are available for human use.

Front

What is grey water?

Back

Grey water is recycled water from baths, showers, and sinks that can be reused for irrigation and other non-potable purposes.

Front

What is black water?

Back

Black water is wastewater that contains human waste and is not suitable for reuse without treatment.

Front

What is green water?

Back

Green water is the moisture in the soil that is available for plants, derived from precipitation.

Front

What are the four main spheres of Earth's systems?

Back

The four main spheres are the geosphere (land), atmosphere (air), hydrosphere (water), and biosphere (living things).

Front

What is the geosphere?

Back

The geosphere includes all the solid land on Earth, including rocks, soil, and landforms.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for weather and climate.

Front

What is the hydrosphere?

Back

The hydrosphere encompasses all water on Earth, including oceans, rivers, lakes, and groundwater.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists on Earth.

Front

What is a drought?

Back

A drought is an extended period of deficient rainfall relative to the statistical multi-year average for a region.