Which of the following is an essential element for life?
a) house
b) cloths
c) water
d) shelter
It is impossible for life to sustain itself without
NTS PST –P-2----(date not confirm)
a) water
b) salt
c) cloth
d) CNG
Presence of water droplets at the outer surface of chilled glass water indicates the physical phenomenon of: NTS CT 25/08/2019 (8:30)
a) condensation
b) transpiration
c) Filtration
d) diffusion
…………water destroys aquatic life and reduces its reproductive ability.
a) contaminated
b) unadulterated
c) undiluted
d) untainted
The percentage of water in ocean is………..
a) 70%
b) 80%
c) 90%
d) 97%
Substances that cause water pollution are called……….
a) pollution
b) Polly
c) pollutants
d) all of these
