Which of the following does not deplete the water table at a place?
increasing number of tube -wells
increasing deforestation
scanty rainfall
increasing snowfall
World water day is on
22nd March
20th March
22nd April
20th April
Which one of the following alter the natural flow of rivers leading to water scarcity.
Rains
Dams
Bridges
None of these
Which natural process continuously converts some of the saline sea water into freshwater?
Evaporation
Transpiration
Infiltration
Water cycle
The process of water seepage into the ground is called
evaporation
aquifer
infiltration
precipitation
Inorganic impurities present in waste water
Pesticides
Oil
Urea
Phosphates
The water - bearing layer of the earth is called
conifer
hydrosphere
water table
The water bearing layer of the earth is called
Aquifer
Ground water
The total water:
in the lakes and rivers of the world remains constant
under the ground remains constant
in the seas and oceans of the world remains constant
of the world remains constant
What percentage of the earth's surface is covered with water?
about 51%
about 21%
about 71%
about 81%
