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 gases results in the Global warming?
[A] Oxygen
[B] Carbon dioxide
[C] Nitrogen
[D] Hydrogen
Show Answer
Correct Answer: B [Carbon dioxide]
Notes:
Global warming can be defined as the century-scale rise in the average temperature of the Earth’s atmosphere and its related effects. Among all the given gases only Carbon dioxide contributes to the Global warming.
42. Which of the following is/are the sources of Black carbon?
1) Biomass burning,
2) Cooking with solid fuels, and
3) Diesel exhaust
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:
Black carbon is a component of fine particulate matter which is produced by the incomplete combustion. Some of the prominent sources of Balck carbon are:
1) Biomass burning,
2) Cooking with solid fuels, and
3) Diesel exhaust
43. Which of the following methods can be helpful in preventing floods?
[A] Deforestation
[B] Afforestation
[C] Tilling of land
[D] Removing the top soil
Show Answer
Correct Answer: B [Afforestation]
Notes:
A flood is an overflow of water that submerges the low lying lands. Some of the reasons which are responsible for floods are deforestation, tilling of land, etc. Afforestation is a method that can be helpful in preventing floods.
44. Which of the following are Environmentally Sensitive Places?
1. Religious and historic places
2. Archaeological monuments/sites
3. Biosphere reserves
4. Airport
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:
Some of the Environmentally Sensitive Places are as follows:
1. Religious and historic places
2. Archaeological monuments/sites
3. Biosphere reserves
4. Airport
5. Natural lakes, swamps Seismic zones tribal Settlements
6. Hill resorts/mountains/ hills
45. What was the main aim of Ramsar Convention?
[A] Bio-diversity Conservation
[B] Global Warming
[C] Conservation of wetlands
[D] Climate Change
Show Answer
Correct Answer: C [Conservation of wetlands]
Notes:
The Convention on Wetlands, called the Ramsar Convention, is an intergovernmental treaty that provides the framework for national action and international cooperation for the conservation and wise use of wetlands and their resources. It is named after the city of Ramsar in Iran, where the Convention was signed in 1971.
46. The sum of genes in a population is called ____:
[A] Phenotype
[B] Karyotype
[C] Genotype
[D] Gene pool
Show Answer
Correct Answer: D [Gene pool]
Notes:
Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
47. Which of the following is not a particulate pollutant?
[A] Ozone
[B] Smoke
[C] Dust
[D] Soot
Show Answer
Correct Answer: A [Ozone]
Notes:
Particulate matter (PM) is a complex mixture of extremely small particles and liquid droplets that get into the air. This complex mixture includes both organic and inorganic particles, such as dust, pollen, soot, smoke, and liquid droplets. Ozone is created in the atmosphere when the sun’s rays split oxygen molecules into single atoms. These atoms combine with nearby oxygen to form a three-oxygen molecule, called ozone.
48. Highest source of air pollution in the world is _____:
[A] Aircraft
[B] Automobiles
[C] Industries
[D] Household wastes
Show Answer
Correct Answer: B [Automobiles]
Notes:
According to the US Environmental Protection Agency (EPA), automobile emissions are the number one source of carbon monoxide, lead, nitrogen oxides, and volatile organic compounds released into the atmosphere that are primarily responsible for air pollution. Industrial processes are the number two cause of lead pollution in the air, following automobile emissions.
49. Which of the wildlife sanctuary is not correctly matched with respective state?
[A] Ranthambhore- Rajasthan
[B] Simlipal- Bihar
[C] Bandipur- Tamil Nadu
[D] Manas- Uttar Pradesh
Show Answer
Correct Answer: A [Ranthambhore- Rajasthan]
Notes:
Ranthambore National park is spread over an area of 392 sq km. along with its nearby sanctuaries like, the Mansingh Sanctuary and Kaila Devi Sanctuary. The park is majorly famous for its tigers, and is one of the best locations in India to see the majestic predators in its natural habitat.
50. Garampani Sanctuary is located at ______:
[A] Diphu, Assam
[B] Gangtok, Sikkim
[C] Junagarh, Gujarat
[D] Kohima, Nagaland
Show Answer
Correct Answer: A [Diphu, Assam]
Notes:
Garampani Wildlife Sanctuary is located in Karbi Anglong district, Assam. It is located at 92 km from Diphu. It is one of the oldest sanctuaries containing hot water spring and waterfalls and surrounded by Nambor Sanctuary having 51 rare species of orchid.