Front

Which describes the total amount of saltwater on Earth?

Back

97%

Front

Which best describes the amount of usable freshwater on Earth?

Back

1%

Front

Water from aquifer is cleaner compared to water from other sources. Why?

Back

it is filtered by the rocks and soil

Front

Which statement best describes a river basin?

Back

the land drained by a river and its tributaries

Front

How does urban sprawl affect water availability?

Back

It changes the shape of the land which changes the watersheds too.

Front

Aquifer pollution is more dangerous than pollution in other bodies of water. Why is that so?

Back

It takes a long time for water to clean itself since it is moving slowly in an aquifer.

Front

Which statement correctly compares river basins and watersheds? Options: There are many watersheds that drain into a river basin., There are many river basins that drain into a watershed., Both river basin and watershed are the same., Only a few areas are drained by river basins while others are drained by watersheds.

Back

There are many watersheds that drain into a river basin.

Front

Among the freshwater given, which is the primary source in the hydrosphere? Options: groundwater, lakes, glaciers and ice caps, ocean

Back

glaciers and ice caps

Front

Which characteristics must a rock possess in order for it to become an aquifer?

Back

porous and permeable

Front

Which of the following could result in the drying up of a river basin? increased evaporation and increased precipitation, decreased evaporation and increased precipitation, increased evaporation and decreased precipitation, decreased evaporation and decreased precipitation

Back

increased evaporation and decreased precipitation