Atmosphere also contains considerable quantity of waters as ………..
a) frost
b) snow
d) water vapors
c) rain
Fresh water needed for human requirements is only ……… of the total.
a) 0.1%
b) 0.2%
c) 0.3%
d) 0.4%
Water present in ocean is unfit for human consumption due to ………. Concentration of dissolve salt.
a) high
b) low
c) moderate
d) all of these
2.14% water is present in the form of ……….
a) ice sheets
b) glaciers
c) both a & b
d) none of these
The heat required for converting a solid into liquid or liquid into vapors, with changing of …….. is called latent heat.
a) pressure
b) temperature
c) volume
d) none of these
Importance of water:-