Choose the one which best expresses the meaning of the

Cockroach is ____ animal and the development is ___

Which one of the following element is not essential for plant growth is:

Crops cultivated to catch the forthcoming season when main crop has failed are called ___

The most commonly used method of herbicide application in India is

Recommendation to control weeds in pearl millet crop through herbicides is pre emergence application of?

Which of the following pairs are correctly matched?

1.    Brown spot of rice           Helminthosporium oryzae

Allocative efficiency is also called as

The important event in the early history of agriculture started in 4400 BC

A. Domestication of sheep

B. Wheat and Barley cultivation

Consider the following stages:

1. Spore germination       

2. Embryo infection

3. Spore on flower grain

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R