NEW
Font size
WorksheetsHydrology
Total questions: 22
Worksheet time: 14mins
71% of Earth's surface is covered by ____
Land
Water
Fresh Water
Salt Water
Salt Water makes up __% of all water on Earth
97
71
53
85
An aquifer is...
a layer of non-permeable rock that contains (holds) water
a layer of permeable rock that contains (holds) water
a layer of sand that holds water
a layer of dirt that contains water
What is the most abundant (most common) salt in the ocean?
a) sodium chloride: Table salt
b) sulfate
a and b
other
Does the water cycle have a beginning and end?
Yes
No
Maybe
No clue
Which statement is true?
precipitation includes rain, snow, and sleet
Tides are caused by the sun's gravitational pull
Tides occur (from high to low) about every 6 hours
Why is most of Earths freshwater is not available for human use.
because it's in the ground
because it's frozen in ice caps and glaciers
because of pollution
because of global warming
