Two circles of radii 15 cm and 10 cm touch each other

Plants which grow at full light intensity are known as:

Urea fertilizer is the main source of nitrogen,applied in our fields ,The NPK ratio of urea is:

Rice inflorescence is known as:

Calcium deficiency causes toxicity of:

Which is a surface irrigation system?

Enzyme that fixes CO₂  in C4 plants at Iow concentrations?

Place the following jelly making steps in the correct order-

(A). Add sugar, boil and remove any scum.

Azolla is used in cultivation of:

Match List I with respective critical stage of irrigation of crops List II

The plant used in saffron spice crop is