121. Which among the following is the secondary pollutant ?
(a) Smog
(b) Carbondioxide
(c) Carbon mono-oxide
(d) Fly ash
122. In which of the following ecosystems the species diversity is relatively higher?
(a) Deep sea
(b) Tropical rain forest
(c) Coral reefs
(d) Desert
123. Which of the following is NOT obtained from insects ?
(a) Silk
(b) Honey
(c) Lac
(d) Pearl
124. Which of the following represents the decibel level of rustling of tree leaves in normal circumstance ?
(a) 10 db
(b) 20 db
(c) 60 db
(d) 100 db
125. United Nations Conference on climate change, COP21 was held in
(a) Moscow
(b) Paris
(c) Berlin
(d) Tokyo
126. When was India’s first National Action Plan on Climate Change released ?
(a) 2000
(b) 2008
(c) 2012
(d) 2015
127. Which is the most stable ecosystem ?
(a) Marine (ocean)
(b) Forest
(c) Mountain
(d) Desert
128. Incinerators are used for which of the following?
(a) Burning wastes
(b) Putting wastes into them
(c) For cutting green trees
(d) For making fertilizers
129. What is ‘Green House Effect’?
(a) Increase in global temperature
(b) Decrease in global temperature
(c) Increase in sea water temperature
(d) Increase in temperature of rivers and lakes
130. Which of the following is the main component of the natural gas?
(a) Ethane
(b) Butane
(c) Carbon mono-oxide
(d) Methane
131. Which pain killer given to cattle is responsible for near extinction of vultures in India ?
(a) Ibuprofen
(b) Acetaminophen
(c) Asprin
(d) Diclofenac
132. Which of the following countries was the largest emitter of CO2 in 2015?
(a) China
(b) U.S.A.
(c) India
(d) France
133. Which of the following statements are true ?
1. Natural disasters cause maximum damage in developing countries.
2. Bhopal gas tragedy was man-made.
3. India is a disaster free country.
4. Mangroves reduce the impact of cyclones.
Select the correct answer from the codes given below:
Codes :
(a) 1, 2 and 3
(b) 2, 3 and 4
(c) 1, 2 and 4
(d) 1, 3 and 4
134. Which of the following has the highest velocity?
(a) Cosmic rays
(b) Light
(c) Electron
(d) Supersonic wave
135. Graphene is
(a) An alloy of carbon
(b) Nano structure of carbon
(c) Isotope of carbon
(d) None of the above
136. The sound will have highest velocity in
(a) Vacuum
(b) Air
(c) Water
(d) Steel
137. A powerful eye irritant in the smoke is
(a) Ozone
(b) Sulphur dioxide
(c) Carbon dioxide
(d) Peroxyacetyle nitrate
138. The book ‘A Brief History of Time’ has been written by whom ?.
(a) Stephen Hawking
(b) J.V. Narlikar
(c) C.V. Raman
(d) S. Bose
139. Which of the following is the richest source of Vitamin C ?
(a) Orange
(b) Apple
(c) Carrot
(d) Amla
140. Which of the following planets may be suitable for existence of life?
(a) Mars
(b) Mercury
(C) Venus
(d) Jupitor
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