The fresh water which is used by agricultural is
a) 75%
b) 87%
c) 80%
d) 100%
The disease occur due to lack of clean water in developing countries
a) 60%
b) 90%
c) 65%
d) 30%
The cause of disease that are contracted from water
a) 4.2 billion
b) 4 billion
c) 1.2 billion
d) 10 billion
The number of people living in urban area is doubling every
a) 30 year
b) 10 to 20 year
c) 10 to 15 year
d) none of these
What will be the world population by the year 2000?
a) 8
b) 14
c) 10
d) 12
What was the total population at the world in 1960?
a) 2.5
b) 3
c) 1.5
d) 4
