What causes the leaves of the grasses to rool in dry weather?

What causes the leaves of grasses to roll in dry weather?

What causes the leaves of grasses to roll in dry weather?

How is rolling of leaves of many grasses in dry weather caused?

What is formed on the leaves of grass in the picture ? Write about it.

In dry arid condition, the leaves of some monocots,like grasses curls inwards to reduce transpiration. This is due to the presence of

In this place the weather is hot and dry

What causes Jupiter's fast winds and stormy weather?

In grasses the arrangement of leaves is