3911: Main constituents of Biogas are:

(a) Methane and Carbon dioxide

(b) Ethylene and Carbon dioxide

(c) Butane and Carbon monoxide

(d) Methane and Carbon monoxide
3912: With reference to micro-irrigation, which of the following statements is/are correct ?

1. Fertilizer/nutrient loss can be reduced.

2. It is the only means of irrigation in dry land farming.

3. In some areas of farming, receding of ground water table can be checked.

Select the correct answer using the codes given below:

(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
3913: The Kelkar proposals which were in the news recently were the

(a) recommendations for reforms in the power sector
(b) recommendations for tax reforms
(c) guidelines for the privatisation
(d) guidelines for reducing vehicular pollution, and the promotion of CNG use
3914: Which of the following are fed to cattle?

1. Sugarcane tops

2. Sugarcane leaves

3. Sugarcane bagasse

4. Sugarcane jaggery

(a) 1, 2, 3 & 4

(b) 1 & 3

(c) 2 & 3

(d) 1, 2 & 3
3915: Which among the following acts as a resistance against disease in the body?

(a) Vitamins

(b) Carbohydrates

(c) Red Corpuscles

(d) White Corpuscles