Bamboo and grasses elongate by the activity of ......

In which of the following reactions is the product an ether?

$A$ line with positive direction cosines passes through the point $P(2,-1,2)$ and makes equal angles with the coordinate axes. The line meets the plane $2x+y+z=9$ at point $Q$. The length of the line segment $PQ$ equals

What is the product formed when salicylic acid is reacted with zinc dust?

Which is the smallest angiosperm?

Pollution from animal excreta and organic waste from the kitchen can be most profitably minimised by