H2O Response Team Review

Front

What is gray water?

Back

Gray water is wastewater from sinks, showers, and washing machines that can be reused for irrigation and other non-potable purposes, but it is not safe to drink.

Front

True or False: Gray water is good to drink.

Back

False

Front

Where does some of the salt in ocean water come from?

Back

Some of the salt in ocean water comes from undersea volcanoes.

Front

True or False: Some of the salt in water comes from undersea volcanoes.

Back

True

Front

What equipment is used to filter dirty water from a river?

Back

Rocks, sand, and charcoal are used to filter dirty water.

Front

Which of the following might not be removed from dirty water using a basic filter? Bacteria, Frog's Eggs, Small Fish, Plant Seeds

Back

Bacteria

Front

What is the hydrosphere?

Back

The hydrosphere is the system that contains all of Earth's water, including oceans, rivers, lakes, and groundwater.

Front

Which systems contains the Earth's water?

Back

Hydrosphere

Front

What percentage of the Earth is covered in water?

Back

About 70% of the Earth is covered in water.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.