Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides?

The value of acceleration due to gravity

The gravitational force between two objects is F. If the masses of both objects are halved without changing distance between them, then the gravitational force would become

Find out the correct sentence

(i) Hybridization means crossing between genetically dissimilar plants.

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

(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.

Find out the correct sentence about manure

(i) Manure contains large quantities of organic matter and small quantities of nutrients.

(ii) It increases the water holding capacity of sandy soil.

(iii) It helps in draining out of excess of water from clayey soil.

(iv) Its excessive use pollutes environment because it is made of animal excretory waste.