Plants and animals that live on land are called

The process of breaking down organic matter by micro organisms is called

In mycorrhizal association, the advantage of plant is:

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.

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…

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