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 sources emits Nitrogen Oxides into the atmosphere?
1) Thermal power plants
2) Industries
3) Vehicular emissions
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Nitrogen oxides are a group of seven gases and compounds which is composed of nitrogen and oxygen and collectively known as NOx gases. Some of the sources of Nitrogen oxides emission are Thermal power plants, industries, and vehicles.
42. The Energy Conservation Act was passed in which of the following year?
[A] 1998
[B] 2001
[C] 2005
[D] 2015
Show Answer
Correct Answer: B [2001]
Notes:
The Government of India enacted the Energy Conservation Act in the year 2001. The Energy Conservation Act is an act to provide for the efficient use of energy and its conservation.
43. Which of the following statements are correct regarding Wildlife corridor or Green corridor?
1. It is an area of habitat which connects wildlife populations separated by human activities.
2. Wildlife corridors may be both natural or created.
3. These corridors help animals that move between isolated patches on a daily basis and also those that migrate between habitats seasonally.
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Wildlife corridor or Green corridor is an area of habitat which connects wildlife populations separated by human activities. Wildlife corridors may be both natural or created. These corridors help animals that move between isolated patches on a daily basis and also those that migrate between habitats seasonally.
44. Where is Lingambudhi Lake located?
[A] Bengaluru
[B] Hubbali
[C] Mysuru
[D] Shivamogga
Show Answer
Correct Answer: C [Mysuru]
Notes:
Lingambudhi Lake is situated in Mysuru city, Karnataka. Mysuru is known for its lakes and parks, and Lingambudhi Lake is a well-known water body in this region. It serves as an important ecological and recreational area within the city limits.
45. The Red Data Book is the documentation of endangered rare species of ____:
[A] Other living organisms
[B] Fauna
[C] Flora
[D] All of the above
Show Answer
Correct Answer: D [All of the above ]
Notes:
A Red Data Book contains lists of species whose continued existence is threatened. Species are classified into different categories of perceived risk. It documents rare and endangered species of animals, plants and fungi, as well as other living organisms in an area, region or country.
46. The toxic metal associated with the Minamata episode is ____:
[A] Lead
[B] Arsenic
[C] Mercury
[D] Cadmium
Show Answer
Correct Answer: C [Mercury]
Notes:
Minamata disease is a neurological syndrome caused by severe methyl mercury poisoning. It is caused by eating large quantities of fish and shellfish polluted by methyl mercury in factory wastewater. The disease is named after Minamata city in Kumamoto prefecture, Japan, where it was first discovered in 1956.
47. 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.
48. Which of the following is an air pollutant?
I. Water vapour
II. Carbon dioxide
III. Hydrogen Gas
[A] Only I
[B] Only II
[C] Only III
[D] Both II and III
Show Answer
Correct Answer: B [Only II]
Notes:
An air pollutant is a substance in the air that can have adverse effects on humans and the ecosystem. Because of its role as a greenhouse gas Carbon dioxide (CO2) has been described as “the leading pollutant” and “the worst climate pollution”. Other examples include carbon monoxide gas from motor vehicle exhaust, or the Sulphur dioxide released from factories.
49. Which of the following primarily causes Mercury Pollution?
[A] Automobile Battery
[B] Diesel Engine
[C] Polymer
[D] CFL Lamp
Show Answer
Correct Answer: D [CFL Lamp]
Notes:
Old compact fluorescent lamp (CFL) bulbs lead to mercury pollution. According to the U.S. Environmental Protection Agency, common CFL bulbs contain 3-5 milligrams (mg) of mercury. CFLs, like all fluorescent lamps, contain mercury as a vapor inside the glass. Mercury (Hg) is a heavy metal that exists in several forms. Human contact with mercury, in any form, can produce toxic effects if the dose is high enough.
50. Mudumalai Sanctuary is famous for ______:
[A] Tigers
[B] Birds
[C] Bisons
[D] Elephants
Show Answer
Correct Answer: A [Tigers]
Notes:
The Mudumalai National Park and Wildlife Sanctuary, now also declared a Tiger Reserve, lies on the northwestern side of the Nilgiri Hills, in Nilgiri District, about 150 km north-west of Coimbatore city in the westernmost part of Tamil Nadu, on the interstate boundaries with Karnataka and Kerala states in South India. The sanctuary is a haven for Bengal Tigers and Indian Leopards and other threatened species.
