Q 1 .What are the use of disposable paper cups over plastic cups ???
@2 How the use of biodegradable and non-biodegradable materials can make a difference to our environment ?? Give an example.
@3 Why do we need to Manage Our Resources ??
@4 How dams are useful for the society ?? Why public opposition to the construction of large dams on rivers ?? ( Hint = Social problems , Environmental problems and Economic problems)