Silent valley of Kerala is being preserved because it has
Rare plants and animals
Only natural forest of India
Costly timber plants
Recreational value
Large woody vines more commonly found in
A renewable exhaustible natural resource is
Which of the following is not done in a wildlife sanctuary?
How many species in the world are facing the threat of extinction?
Hangul Project was started by government to save hangul (Cernushanglu ) in $1970 .$ The sanctuary where it is started is