What makes the lakes saline?
it is perennial
it is fresh
high rate of evaporation
it is non-perennial
The point from where a river originate is called:
head
valley
mouth
tail
Areas that receive large amount of rainfall have the problems of flood and marshy lands in:
Desert areas
Polar areas
Equatorial areas
Hilly areas
The longest river in the world
Nile
Ganga
Amazon
Krishna
The huge body of water is:
lake
river
pond
an ocean
