1266: Micro-elements needed to increase soil fertility are:
(a) Nitrogen, hydrogen and calcium
(b) Nitrogen, phosphorus and potassium
(c) Iron, calcium and potassium
(d) Manganese, copper and zinc
1267: What is the correct chronological sequence of the following ?
I. Wood's Education Despatch
II. Macaulay's Minute on Education
III. The Sargeant Education Report
IV. Indian Education (Hunter Commission)
(a) II, I, IV, III
(b) II, I, III, IV
(c) I, II, IV, III
(d) IV, III, I, II
1268: Helium is used for respiration in deep water instead of nitrogen because:
(a) It is heavier than nitrogen
(b) It is lighter than nitrogen
(c) It mixes less in blood than nitrogen
(d) It helps oxygen burn more quickly
1269: Consider the following statements regarding power sector in India :
I. The installed capacity of power generation is around 95000 MW.
II. Nuclear plants contribute nearly 15% of total power generation.
III. Hydroelectricity plants contribute nearly 40% of total power generation.
IV. Thermal plants at present account for nearly 80% of total power generation.
Which of these statements is/are correct ?
(a) I only
(b) II and III
(c) III and IV
(d) I and IV
1270: 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