Biology

Which leaves are used by farmers to protect their crops from weeds and insects ?

• Peepal leaves

• Basil leaves

• Neem leaves

• Mango leaves

The organic substances obtained from the decomposition of plant or animal wastes is called:-

• Fertilisers

• Manures

• Weedicides

• Fungicides

Why paddy cannot be grown in winter season?

• They need sufficient sunlight which is not available in winters.

• They require lot of water

• Their seeds require high temperature to germinate.

• All of these

Paddy, maize, soyabean and cotton are the examples of which crops ?

• Kharif crops

• Rabi crops

• Weeds

• None of these

The substances which are added to the soil in the form of nutrients for the healthy growth of plants are called ?

• Manure

• Weeds

• Pesticides

• None of these

Which of the following is not a rabi crop ?

• Rice

• Mustard

• Wheat

• Barley

Large scale storage of grains is done in silos and granaries to protect them from pests like rats and insects.

• True

• False

Nowadays the seed drills is used for sowing with the help of tractors.

• True

• False

The Organic (a)   is considered better than fertilizers.

The removal of weeds is called?

(a)