The human body is also composed of….…… water by mass.
a) 60-70%
b) 65-70%
c) 80%
d) 90%
The presence of…is necessary for performing various biological purposes.
a) water
b) wine
c) paints
d) wood
Human blood plasma is composed of ………. of water.
a) 90%
b) 93%
c) 91%
d) 92%
In the
universe, earth is only known planet that contain……….
a) water
b) juice
c) milk
d) wine
Earth has been called the ………. planet.
a) pink
b) yellow
c) black
d) blue
Approximately ………. percent of the planet’s water is fresh water.
a) 3%
b) 0.2 %
c) 5%
d) 0.02 %
