WorksheetsChp 3. The Earth and its Living World (Hydrosphere)
Total questions: 10
Worksheet time: 5mins
What does the greek word 'Hydro' mean?
Water
Air
Rocks
Land
Water is made of the following:
two oxygen atoms and one hydrogen atom
two helium atoms and one oxygen atom
two hydrogen atoms and one oxygen atom
three hydrogen atoms
What percentage of Earth is covered in water?
25%
75%
3%
97%
What percent of water is salt water?
25%
0.25%
97%
75%
Which is salty water on Earth?
river
lakes
ponds
oceans
How many oceans are their on earth?
seven
five
six
four
Which answer below is NOT a part of the hydrosphere?
Rain
Clouds
Rivers
Oceans
Examples of fresh water are as:
lakes, rivers and oceans
lakes, rivers and streams
rivers, ponds and oceans
oceans and seas
The place where a river meets and ocean or sea
estuary
delta
salt water
brackish
Where is most of the earth's fresh water?
Frozen in glaciers
In the ground
In ponds and lakes
In the atmosphere
