Question

Why do we see dew drops on leaves in the early morning?

Answer 1

The dew drops that we see on the leaves in the early morning is due to guttation. Guttation is loss of water in liquid form from the plants. It occurs when there is active absorption of water by roots and transpiration is low i.e. moist and humid conditions. Therefore, guttation generally occurs in the early morning because transpiration is less at that time but water is actively absorbed by the roots. So, the water oozes out from the uninjured tips or edges of the leaves where a major vein terminates. These drops are the dew drops.