Ground water is the____________source of water for man.
Ordinary
secondary
main
unimportant
Snowfall that is accompanied with rain is called:
glacier
precipitation
Sleet
Fog
Acid rain is a type of __________pollution.
air
sound
water
soil
Area that slopes down on drains to the main river is called:
river basin
mouth of the river
head of the river
tail of the river
What makes the lake saline?
it is perennial
it is fresh
high rate of evaporation
it is non-perennial
The largest of all oceans:
Atlantic
Indian
Pacific
Arctic
The store house of many resources like fish,minerals and energy is______.
river
pond
oceans
sea
Heavy rainfall leads to :
Earthquakes
drought
floods
spring
Around _________________% of the earths surface is covered with water.
21%
60%
71%
91%
Areas that receive large amount of rainfall have the problems of flood and marshy lands in:
Desert areas
Polar areas
Equatorial areas
Hilly areas
