Environment, Ecology & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
1. Which of the following organ / tissue of human body is most sensitive to intake of lead?
[A] Blood
[B] Brain
[C] Kidney
[D] Lungs
Show Answer
Correct Answer: B [ Brain ]
Notes:
Brain is the most sensitive part in human body with respect to lead poisoning.
2. Which of the following is NOT a correct match?
[A] Shark Bay – Australia
[B] Carrasco National Park – Bolivia
[C] Atlantic Forest South-East Reserves – France
[D] Kakadu National Park – Australia
Show Answer
Correct Answer: C [ Atlantic Forest South-East Reserves – France ]
Notes:
Atlantic Forest South-East Reserves is in Brazil.
3. Which of the following is not a primary greenhouse gas found in earth’s atmosphere?
[A] Carbon dioxide
[B] Methane
[C] Water vapour
[D] Nitrogen oxides (NOx)
Show Answer
Correct Answer: D [Nitrogen oxides (NOx)]
Notes:
A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. The primary greenhouse gases in Earth’s atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. Nitrogen oxides (NOx) act as indirect greenhouse gases by producing the tropospheric greenhouse gas ‘ozone’ via photochemical reactions in the atmosphere.
4. Which among the following verities of Fishes is insectivorous?
[A] Hilsa
[B] Gambusia
[C] Labeo
[D] Katla
Show Answer
Correct Answer: B [Gambusia]
Notes:
Gambusia is a large genus of fish in family Poeciliidae. Gambusia species are also known as mosquito fish, which, refers more specifically to two species, G. Affinis and G. Holbrooki. These can be introduced into ponds to eat mosquito larvae. That’s why, Insectivorous fish used for mosquito control is Gambusia.
5. Lichens, which are capable of initiating ecological succession even on a bare rock, are actually a symbiotic association of __:
[A] algae and bacteria
[B] algae and fungi
[C] bacteria and fungi
[D] fungi and mosses
Show Answer
Correct Answer: B [ algae and fungi]
Notes:
A lichen is a composite organism consisting of a fungus (the mycobiont) and a photosynthetic partner (the photobiont or phycobiont) (usually algae) growing together in a symbiotic relationship.
6. In which of the following ecosystems, the pyramid of biomass is ‘inverted’ in shape?
[A] Pond ecosystem
[B] Grassland ecosystem
[C] Forest ecosystem
[D] None of the above
Show Answer
Correct Answer: A [ Pond ecosystem ]
Notes:
Biomass is the amount of living material in an organism. The pyramids of biomass represent the relationship between different trophic levels in terms of biomass. In grassland and forest ecosystems, there is generally a gradual decrease in biomass of organisms at successive trophic levels from the producers to the consumers. Their pyramid of biomass is upright. In aquatic ecosystem the producers are small organisms with least biomass and the biomass gradually increase towards the apex of the pyramid. Thus the pyramid of biomass of aquatic ecosystems is inverted in shape.
7. At which among the following places first governmental meeting on tiger conservation was held in 2009?
[A] Kua Lalumpur
[B] Katmandu
[C] Colombo
[D] Bangkok
Show Answer
Correct Answer: B [Katmandu]
Notes:
India’s project tiger was launched in 1973. The first governmental meeting on tiger conservation was held in Kathmandu, Nepal in October 2009. This meeting had recommended a series of 15 global actions that need to be taken to change the trajectory of tigers from extinction to recovery, as well as commitments from several tiger range countries. Later, first Asian ministerial conference on tiger conservation was held in Hua Hin, Thailand in January 2010. This conference adopted the goal of doubling the number of tigers by 2022.
8. What is Malathion?
[A] A pigment
[B] A Vitamin
[C] A Pesticide
[D] An explosive
Show Answer
Correct Answer: C [A Pesticide]
Notes:
Malathion is an insecticide in the chemical family of organophosphates. It is used to control a wide variety of insects in agricultural as well as domestic purpose. It is also used for mosquito control and fruit fly eradication.
9. Which among the following correctly defines Global 200?
[A] An annual list of top ranking 200 companies released by Forbes Magazine
[B] List of 200 World Heritage Sites released by UNESCO
[C] List of 200 Cities which are of strategic importance
[D] List of 200 Ecoregions identified by the World Wildlife Fund (WWF) as priorities for conservation
Show Answer
Correct Answer: D [List of 200 Ecoregions identified by the World Wildlife Fund (WWF) as priorities for conservation]
Notes:
The Global 200 is the list of ecoregions which is identified by World Wildlife Fund (WWF) as priorities for conservation. The conservation status of critical or endangered, vulnerable, and relatively stable or intact are assigned to each region.
10. Which among the following is known as “Sairandhri Vanam”?
[A] Silent Valley National Park
[B] Mudumalai National Park
[C] Periyar National Park
[D] Guindy National Park
Show Answer
Correct Answer: A [Silent Valley National Park]
Notes:
Silent Valley National Park also known as “Sairandhri Vanam” is located in the state of Kerala and is located in the Nilgiri hills. It is home to the lion-tailed macaques, an endangered species of primate. In 1973, “Save Silent Valley” campaign (environmental movement) was initiated when the Kerala State Electricity Board declared to implement the Silent Valley Hydro-Electric Project.
[contact-form-7 id="141158" title="Contact form 1"]
