Identify the agent of dispersal of the following seed.

............. are chemicals that are sprayed on standing crops.

Complete the series.

rice : clayey soil :: ................... : black soil

The disease caused due to deficiency of Vitamin D.

In anaemia the ............... in the blood becomes low.

Plants which grow from underground stems.

A seed with two seed leaves is called a ........................ .

Insecticides and pesticides protects crops from being destroyed by ............... .

Identify this vegetative propagation.