A water molecule has atoms:
a) one hydrogen and one oxygen
b) two hydrogen and one oxygen
c) one hydrogen and three oxygen
d) one hydrogen and no oxygen
Plants bodies consist of……..% of water.
NTS PST 15/12/2019 (3:00)
a) 50
b) 60
c) 80
d) 90
A tomato is about………
a) 80%
b) 85%
c) 90%
d) 95%
Water makes up:
a) 95% of our blood, 75% of our brain, 85% of our lungs
b) 90% of our blood, 70% of our brain, 80% of our lungs
c) 85% of our blood, 65% of our brain, 75% of our lungs
d) 80% of our blood, 60% of our brain, 65% of our lungs
The water that soaks into the ground is called……..
a) ocean water
b) ground water
c) fresh water
d) freezing water
The addition of harmful substance into the water is called……..
a) water pollution
b) air pollution
c) land pollution
d) all of these
