What Is Hydrarch Succession

Q.

The growth of Lichens on barren rocks is followed by the growth of

1. Moss.

2. Ferns.

3. Gymnosperms.

4. Algae.

Q. The correct sequence of plants in hydrosere is :

1. Oak $\to$ Lantana $\to$ Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus
2. Oak $\to$ Lantana $\to$ Scirpus $\to$ Pistia $\to$ Hydrilla $\to$ Volvox
3. Volvox $\to$ Hydrilla $\to$ Pistia $\to$ Scirpus $\to$ Lantana $\to$ Oak
4. Pistia $\to$ Volvox $\to$ Scirpus $\to$ Hydrilla $\to$ Oak $\to$ Lantana

Q. The conversion of a pond to a forest community is an example of ___.

1. Xerarch succession
2. Mesarch succession
3. Hydrarch succession
4. All of these
5. None of these

Q.

name the jellitinous substance that covers brown algae