The saprophytic bryophyte found in the Himalayas is ......

The $Riccia$ gametophyte develops from a spore and ends in:

'Peat' is an important source of domestic fuel in several countries. How is 'Peat' formed in nature?

Dichotomous branching is found in ...........

Arrange the following events in a correct sequence with respect to the life cycle of mosses$:-$
$(I)$ Fertilization
$(II)$ Dispersal of spores
$(III)$ Protonema
$(IV)$ Leafy stage

In mosses,the second gametophytic stage is the leafy stage. Consider the following statements about the leafy stage:
$I.$ The leafy stage is produced from the secondary protonema as a lateral bud.
$II.$ They consist of upright,slender axes bearing spirally arranged leaves.
$III.$ They are attached to the soil through multicellular rhizoids.
$IV.$ This leafy stage bears the sex organs.
Which of the statements given above are correct?