To solve the food problem of the country, which among the following is necessary?

Which one is not a source of carbohydrate?

Find out the wrong statement from the following

Find out the correct sentence

(i) Hybridisation means crossing between genetically dissimilar plants

(ii) Cross between two varieties is called as inter specific hybridization.

(iii) Introducing genes of desired character into a plant gives genetically modified crop

(iv) Cross between plants of two species is called as inter varietal hybridization.

Weeds affect the crop plants by