3836: Department of Border Management is a Department of which one of the following Union Ministries?
(a) Ministry of Home Affairs
(b) Ministry of Defence
(c) Ministry of Shipping, Road Transport and Highways
(d) Ministry of Environment and Forests
3837: The Stone Age people had the first domestic:
(a) Asses
(b) Dogs
(c) Horses
(d) Sheep
3838: Consider the following statements :
At the present level of technology available in India, solar energy can be conveniently used to
I. supply hot water to residential buildings.
II. supply water for minor irrigation projects.
III. provide street lighting.
IV. electrify a cluster of villages and small towns.
Of these statements
(a) I, II, III and IV are correct.
(b) II and IV are correct
(c) I and III are correct
(d) I, II and III are correct
3839: Which of the following adds/add carbon dioxide to the carbon cycle on the planet Earth?
1. Volcanic action
2. Respiration
3. Photosynthesis
4. Decay of organic matter
Select the correct answer using the code given below.
(a) 1 and 3 only
(b) 2 only
(c) 1, 2 and 4 only
(d) 1, 2, 3 and 4
3840: Which of the following is the correct order of increasing size of the grains of soil particles?
(A) Clay
(B) Silt
(C) Sand
(D) Gravel
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(a) A, B, C, D
(b) D, C, A, B
(c) B, C, A, D
(d) C, D, B, A