WorksheetsPollution Of Water
Total questions: 10
Worksheet time: 9mins
Which of the following is/are not the cause/s for scarcity of water ?
increase in population
increase in rainfall
cutting down of trees on a large scale
rain water harvesting
Give a single term used for water which is safe for drinking.
(a)
Identify the method used to purify water:-
It is a chemical method for purifying water. It is done by adding chlorine tablets to water.
(a)
Which property of water often becomes a major cause of water pollution ?
it is necessary for survival of life on earth
it can dissolve a large number of substances
it can evaporate naturally
it is a habitat of many aquatic animals
The substances which pollute water are called (a)
Which substances pollute the underground water ?
fertilisers
aquatic animals
industrial waste
pesticides
What are the parameters that are needed to be followed before water is supplied for drinking purposes ?
It should be tasteless
It should be free from harmful chemicals
It must be colourless
none of the above
The purpose of purifying water is to :-
make it suitable for aquatic animals
remove suspended impurities
destroy harmful germs
save energy
What should be our guiding principle while using water ?
recycle
reduce
reuse
all of the above
The treatment of industrial waste depends upon the nature of the (a) present.
