Which one of the following is most sensitive to environmental change?

Which of the following is the correct sequence of phases of Biotic succession ?

With reference to lichens, which of the following statements is/are correct? 1. Lichens are very good indicators of pollution. 2. Lichens grow well in polluted areas.

The species which are in danger of extinction are known as?

With reference to the planet Earth, consider the following statements: I. Rain forests produce more oxygen than that produced by oceans. II. Marine phytoplankton and photosynthetic bacteria produce a…

A biological community in its environment such as a pond, an ocean, a forest, even an aquarium is known as