Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. In which of the following industries, Hydrofluorocarbons are used?
1) Refrigerants
2) Aerosol propellants
3) Fire retardants
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:
Hydrofluorocarbons are organic compounds that contain fluorine and hydrogen atoms. They are also called as HFC’s and posses a great threat to the environment. Some of the industries which use HFC’s are refrigerants, aerosol propellants, solvents, and fire retardants.
42. Which of the following statements are correct regarding the Global Warming Potential?
1) It describes the impact of each gas on global warming.
2) Gases which has higher GWP absorb more energy.
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:
Global warming potential also termed as GWP provides information about the impact of each gas on global warming. Gases which has higher GWP absorb more energy resulting in more warming of the atmosphere.
43. European Union Emissions Trading System was launched in which of the following year?
[A] 2001
[B] 2003
[C] 2005
[D] 2007
Show Answer
Correct Answer: C [2005]
Notes:
The European Union Emissions Trading System (EU ETS), was the first large greenhouse gas emissions trading scheme in the world. It was launched in the year 2005 to fight global warming.
44. 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.
45. Which of the following are organisms that obtain energy by the oxidation of electron donors in their environments?
[A] Photoheterotrophs
[B] Chemotrophs
[C] Phototrophs
[D] Hemotrophs
Show Answer
Correct Answer: B [Chemotrophs]
Notes:
Organisms that obtain energy by the oxidation of electron donors in their environments are known as Chemotrophs. These molecules can be both organic (chemoorganotrophs) or inorganic (chemolithotrophs).
46. What species of small frog is found in the dense forested hill streams and forest streams in the Western Ghats of India?
[A] Nyctibatrachus manalari
[B] Micrixalus Saxicola
[C] Micrixalus Fuscus
[D] Both B and C
Show Answer
Correct Answer: D [Both B and C]
Notes:Micrixalus fuscus (dusky torrent frog or brown tropical frog) is a species of small frog that is found in the dense forested hill streams in the Western Ghats.
Micrixalus saxicola (Malabar tropical frog, black torrent frog, small torrent frog, Jerdon’s olive-brown frog) is a species of frog of the Micrixalidae family and is found in the forest streams in the Western Ghats.
47. Which of the following gas is most harmful for ozone layer?
[A] Carbon dioxide
[B] Chlorofluro-carbon
[C] Nitrogen oxide
[D] Sulphur dioxide
Show Answer
Correct Answer: B [Chlorofluro-carbon]
Notes:
Chlorofluorocarbons (CFCs) are nontoxic, non-flammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants. Because CFCs contribute to?ozone?depletion in the upper atmosphere, the manufacture of such compounds has been phased out under the Montreal Protocol.
48. The basic unit of biosystematics is ____:
[A] Phenotype
[B] Genotype
[C] Ecotype
[D] Florotype
Show Answer
Correct Answer: C [Ecotype]
Notes:
Ecotype is the basic unit of Biosystematics. It is adapted to a particular environment but capable of producing fully fertile hybrids with other ecotypes. The term Ecotype proposed by Turesson refers to “an ecological unit to cover the product arising as a result of genotypical response of an ecospecies to a particular habitat.”
49. Which of the following statement is incorrect?
[A] Forest protect the soil from erosion
[B] Plants and animals in a forest are not dependent on one another
[C] Forests influence the climate and water cycle
[D] Soil helps forest to grow and regenerate
Show Answer
Correct Answer: B [Plants and animals in a forest are not dependent on one another]
Notes:
Plants and animals interact with each other in the environment. In the food chain, some animals each other animals and use them for food. Some animals depend on others through symbiotic relationships. Plants provide a global benefit to animals by releasing oxygen into the atmosphere.
50. Which national park is famous for its Bungle Bungle Range?
[A] Purnululu National Park
[B] Kakadu National Park
[C] Uluru-Kata Tjuta National Park
[D] Great Sandy National Park
Show Answer
Correct Answer: A [Purnululu National Park]
Notes:
Purnululu National Park, situated in the East Kimberley region of Western Australia, is recognized globally for the unique, cone-shaped karst formations of the Bungle Bungle Range. This World Heritage Site, covering over 239,723 hectares, houses a rich biodiversity including 150 bird species, 40 native mammals, and 81 reptile species. Notable for its indigenous cultural significance, it is also home to three of Australia’s most venomous snakes and features distinctive landmarks such as Echidna Chasm, Cathedral Gorge, and Piccaninny Gorge.
