Question

discuss the present situation of drinking water supply in Nepal​

Answer 1

Answer:

Water is one of the basic human necessities but a large proportion of the Nepalese population is devoid of access to safe and adequate drinking water. According to the Department of Water Supply and Sewerage in Nepal, even though an estimated 80% of the total population has access to drinking water, it is not safe.

Answer 2

Answer:

i. Epidermis - is the outermost protective layer made up of tabular (flattened) cells.

ii. Endothecium - is sub-epidermal layer made up of radially elongated cells with fibrous

thickenings of callose .

iii. Middle layer - is inner to endothecium and is made up of thin walled cells (1-2

layered), which may disintegrate in mature anther.

iv. Tapetum - is the inner most nutritive layer of anther wall. It immediately encloses the

sporogenous tissue (microspore mother cells