Estuaries are considered as nutrient rich and trap
River
Pond
Lake
Ocean
Which of the following is a pair of endangered species?
Total number of all species of organisms in a given region is known as the region's
Which one of the following is not related to $5\; F’s$ of Chipko movement?
Decline in the population of indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be categoriesd as
How many species in the world are facing the threat of extinction?