Question

Give 1 word for each of the following:
1. A place where a river or a stream opens into the sea?

2. Floating green microorganisms and plants?

3. Rhizobium in the root nodules of leguminous plants?

4. A zone of junction between two adjoining diverse ecosystems?

Answer 1

1.perrinial

2. algae

3.plant

4.ecology

Answer 2

1 . mouth of river.
2. algae.
3. rhizobia.
4.adjoining communities