Question Text
Question 3 :
Which ambitious plan to save the Ganga river was launched in 1985?
Question 4 :
State True or False.
We can survive for some time without air but we cannot survive even for a few minutes without food.
Question 5 :
Is there a need to switch over to alternative fuels instead of the fossil fuels for our energy requirements, like solar energy, hydropower and wind energy?
Question 6 :
The trapping of radiations by the earth’s atmosphere is similar. That is why it is called the -
Question 7 :
State True or False.
Carbon monoxide is produced by complete burning of fuels such as coal, petrol, diesel.
Question 8 :
The excessive quantities of chemicals released in water acts as nutrients for the growth of which organism?
Question 10 :
Choose the sources which cause air pollution due to suspended particulate matter.
Question 11 :
Water used for washing and for other household tasks can be reused for -
Question 13 :
The bacteria present in the faeces of mammals are indicators of
Question 14 :
Incomplete combustion of fuel such as petrol and diesel gives ______.
Question 15 :
State True or False.
The Gangotri glacier in the Himalayas has started melting because of global warming.
Question 16 :
State True or False.
Pollution is no longer a distant phenomenon. It is affecting the quality of our daily lives.
Question 18 :
The pollutants in _______ are discolouring the white marble of Taj Mahal
Question 19 :
Once the algae in water die, they serve as a food for decomposers like -