Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Which of the following statements regarding Ocean acidification are correct?
1) Ocean acidification refers to a reduction in the pH of the ocean over an extended period of time.
2) The major cause is Carbon Dioxide from the atmosphere.
3) Harm life forms that rely on carbonate-based shells and skeletons
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Ocean acidification refers to a reduction in the pH of the ocean over an extended period of time of which the major cause is Carbon Dioxide from the atmosphere. It is Harmful for the life forms that rely on carbonate-based shells and skeletons.
42. Which of the following statements are correct regarding Stockholm Conference, 1972?
1. It was the first step towards which put forward environmental concerns on the global agenda.
2. The Stockholm Declaration contained principles and an Action Plan containing recommendations for environmental policy.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Stockholm Conference, 1972 was the first step towards which put forward environmental concerns on the global agenda. The Stockholm Declaration contained principles and an Action Plan containing recommendations for environmental policy.
43. Which is the only country in the world that forms the habitat of the “Reunion cuckooshrike”?
[A] Brazil
[B] Indonesia
[C] Australia
[D] France
Show Answer
Correct Answer: D [France]
Notes:
Reunion cuckooshrike is a passerine bird in the cuckooshrike family which is endemic to and found only in the mountain forest areas of the Reunion Island, an overseas region of France in the Indian Ocean. According to the IUCN Red List of Threatened Species, it is a “critically endangered” bird species.
44. Which of the following is/are the elements of sustainable agriculture?
1) Permaculture
2) Agroforestry
3) Mixed farming
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Permaculture is a method of developing ecologically harmonious, efficient, and sustainable means of farming. The Agroforestry and mixed farming uses a land management system in which trees or shrubs or crops and livestock are raised together. Hence all three are elements of sustainable agriculture.
45. Which of the following organization is the apex authority of disaster management in India?
[A] CDMA
[B] NDMA
[C] INDR
[D] None of the above
Show Answer
Correct Answer: B [NDMA]
Notes:
The National Disaster Management Authority (NDMA) is the apex statutory body that makes policies for disaster management in India. It was founded in 2005 and is headed by the Prime Minister of India.
46. Apart from Sundari trees, which other plants can also be seen in Mangrove forest?
[A] Asparagus
[B] Bamboo
[C] Dhundal
[D] All of the above
Show Answer
Correct Answer: C [Dhundal]
Notes:
Littoral and Swamp Forests or the Mangrove Forests mostly contain sundari mangrove trees. The other main
species found in these forests are
casuarina trees, goran, gnewa, baen,
dhundal, etc.
47. Which of the following green house gases has the greatest heattrapping ability?
[A] Carbon dioxide
[B] Chlorofluoro carbon
[C] Nitrous oxide
[D] Methane
Show Answer
Correct Answer: B [Chlorofluoro carbon]
Notes:
Gases that trap heat in the atmosphere are called green house gases. Global Warming Potentials (GWPs) are used to compare the abilities of different green house gases to trap heat in the atmosphere. Carbon dioxide is used as the base for all the calculations, so its global warming potential is 1.2. The higher the GWP, the more heat the specific gas can keep in the atmosphere. Fluorinated gases : Chlorofluorocarbons, Hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, and nitrogen trifluoride : are synthetic, powerful greenhouse gases that have highest heat trapping abilities. These gases are 1,000; 10,000 even 20,000 times more powerful than Carbon dioxide (CO2) at trapping heat and many can stay in our atmosphere for thousands of years.
48. Kyoto Protocol, an agreement signed by various countries, is associated with ______:
[A] International Trade
[B] Building common food stock to save human beings from any natural disaster
[C] Clean Environment and Climate Change
[D] Deep Sea Oil and Mineral Exploration
Show Answer
Correct Answer: C [Clean Environment and Climate Change]
Notes:
The Kyoto Protocol was an international treaty which extended the 1992 United Nations Framework Convention on Climate Change that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that global warming is occurring and that human-made CO2 emissions are driving it.
49. Green manure is obtained from _____:
[A] Oil seed husk cakes
[B] Decomposing green legume plants
[C] Domestic vegetable waste
[D] Fresh animal excreta
Show Answer
Correct Answer: B [Decomposing green legume plants]
Notes:
Green undecomposed material used as manure is called green manure. It is obtained in two ways: (a) growing green manure crops usually belonging to leguminous family and incorporating into the soil after sufficient growth or (b) by collecting green leaf from plants grown in wastelands, field bunds and forest. The most important green manure crops are sunnhemp, dhaincha, etc.
50. The “Loktak” lake is located in which state of India?
[A] Manipur
[B] Meghalaya
[C] Tripura
[D] Mizoram
Show Answer
Correct Answer: A [Manipur]
Notes:
Loktak lake is located near Moirang in Manipur. It is the largest freshwater lake in North -East India. It is famous for the phumdis floating over it. Keibul Lamjao, the only floating national park in the world, floats over the Loktak Lake.
