136: The chief constituent of gobar gas is:
(a) Hydrogen
(b) Nitrogen
(c) Ethane
(d) Methane
137: Three men start together to travel the same way around a circular track of 11 km. Their speeds are 4, 5.5 and 8 kmph respectively. When will they meet at the starting point for the first time?
(A) After 22 hours
(B) After 21 hours
(C) After 11 hours
(D) After 33 hours
138: Which of the following are the objectives of National Nutrition Mission?
1. To create awareness relating to malnutrition among pregnant women and lactating mothers.
2. To reduce the incidence of anemia among young children, adolescent girls and women.
3. To promote the consumption of millets, coarse cereals and unpolished rice.
4. To promote the consumption of poultry eggs.
Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 1, 2 and 3 only
(c) 1, 2 and 4 only
(d) 3 and 4 only
139: The process of light exposure in a 24-hour cycle that controls the growth and development of certain plants and animals is called:
(a) Photosynthesis
(b) Photoionisation
(c) Photoperiodism
(d) Photoluminescence
140: After consolidating his power, Balban assumed the grand title of
(a) Tute-i-Hind
(b) Kaisr-i-Hind
(c) Zil-i-Ilahi
(d) Din-i-Ilahi