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 are correct regarding Climate forcings?
1) Negative forcings warm the earth
2) Positive forcings cool the earth.
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: D [Neither 1 & 2]
Notes:
Climate “forcings” are the factors that either increase the effects on the climate system or decrease the effects on the climate system. Positive forcings warm the earth while negative forcings actually cool the earth.
42. Which of the following statements are correct regarding India’s Intended Nationally Determined Contribution to UNFCCC?
1. India aims to reduce the emissions intensity of its GDP by 33 to 35 per cent by 2030 from the 2005 level.
2. India aims to create an additional carbon sink of 2.5 to 3 billion tonnes of CO2 equivalent by increasing forest and tree cover by 2030.
Select the correct option from the codes give below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
India aims to reduce the emissions intensity of its GDP by 33 to 35 per cent by 2030 from the 2005 level. India aims to create an additional carbon sink of 2.5 to 3 billion tonnes of CO2 equivalent by increasing forest and tree cover by 2030.
43. At which of the following places, Volcanoes are generally found?
[A] Intraplates crush against each other or pull apart
[B] Earth’s crust crush against each other or pull apart
[C] Tectonic plates crush against each other or pull apart
[D] None of the above
Show Answer
Correct Answer: C [Tectonic plates crush against each other or pull apart]
Notes:
Most of the volcanoes are present at the places where the tectonic plates crush against each other or pull apart. Sixty percent of all active volcanoes occur at the boundaries between tectonic plates.
44. 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.
45. The impacts of which of the following is studied under Impact Prediction in Environment Impact Assessment?
1. Biological
2. Noise
3. Land
4. Air
Select the correct option from the codes given below:
[A] Only 1, 2 & 3
[B] Only 2, 3 & 4
[C] Only 1, 3 & 4
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: D [1, 2, 3 & 4]
Notes:
The impacts of the following is studied under Impact Prediction in Environment Impact Assessment:
1. Biological
2. Water
3. Land
4. Air
5. Noise
46. Which of the following is a measurement of all greenhouse gases we individually produce and has units of tonnes (or kg) of carbon dioxide equivalent?
[A] Carbon footprint
[B] Primary footprint
[C] Secondary footprint
[D] Carbon diet
Show Answer
Correct Answer: A [Carbon footprint]
Notes:
Carbon Footprint is a measurement of all greenhouse gases that we produce individually and has units of tonnes (or kg) of carbon dioxide equivalent. It is made up of the sum of two parts, i.e., the primary footprint and the secondary footprint.
47. Which of the followings is an example of Montane Wet Temperate Forests?
[A] Maple
[B] Hogla
[C] Cocnut
[D] All of the above
Show Answer
Correct Answer: A [Maple]
Notes:
Montane Wet Temperate Forests is found in upper
reaches of North Bengal hills with an
altitude between 1650 m-3000 m. The main sites of these forests are Selimbong, Kankibong, Little Rangit,
Lopchu, Mahaldiram, Paglajhora, etc
in the districts of Darjeeling and
Kalimpong. The species commonly found in these forests are oak, maple,
pine, fir, deodar and spruce.
48. The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for ____:
[A] Particles per mole
[B] Purity per microgram
[C] Pollutant prevent measures
[D] Parts per million
Show Answer
Correct Answer: D [Parts per million]
Notes:
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
49. Which of the following does not cause pollution?
[A] Burning of rubber
[B] Use of solar energy
[C] Burning of petrol
[D] All of the above
Show Answer
Correct Answer: B [Use of solar energy]
Notes:
Solar energy does not generate waste or contaminate water, or cause any pollution—an extremely important factor given the scarcity of water. Unlike fossil fuels and nuclear power plants, wind energy has one of the lowest water-consumption footprints, which makes it a key for conserving hydrological resources.
50. Study of organisms in relation to their environment is called ____:
[A] Zoology
[B] Ecology
[C] Entomology
[D] Palynology
Show Answer
Correct Answer: B [Ecology]
Notes:
Ecology is the scientific study of interactions among organisms and their environment, such as the interactions organisms have with each other and with their abiotic environment. Topics of interest to ecologists include the diversity, distribution, amount (biomass), number (population) of organisms, as well as competition between them within and among ecosystems.
