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Daily-static-mcqs 29 Sep 2023

Daily Static MCQs for UPSC & State PSC Exams - Environment & Ecology (30 September 2023) 29 Sep 2023

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Daily Static MCQs for UPSC & State PSC Exams - Environment & Ecology (30 September 2023)


Daily Static MCQs Quiz for UPSC, IAS, UPPSC/UPPCS, MPPSC. BPSC, RPSC & All State PSC Exams

Subject : Environment & Ecology


1. Match the following environmental treaties with their focus areas:

Treaty Focus Area
1. Kyoto Protocol Climate change mitigation
2. Basel Convention Hazardous waste management
3. Ramsar Convention Wetland conservation

How many of the above pairs are correctly matched?

(a) Only one
(b) Only two
(c) All three
(d) None

Answer: (C)

Explanation:

  • The Kyoto Protocol is an international treaty that focuses on addressing climate change. Its primary objective is to reduce greenhouse gas emissions and combat global warming. Hence, pair 1 is correctly matched.
  • The Basel Convention is an international treaty that aims to control the transboundary movement and disposal of hazardous waste. It promotes environmentally sound management of hazardous wastes to minimize their adverse impacts on human health and the environment. Hence, pair 2 is correctly matched.
  • The Ramsar Convention is an international treaty that emphasizes the conservation and sustainable use of wetlands. It recognizes the ecological value of wetlands and promotes their wise use, with the goal of maintaining their ecological functions and biodiversity. Hence, pair 3 is correctly matched.

Hence, option (c) is the correct answer.

2. What is the focus of Agenda 21, which emerged from the Earth Summit conference?

(a) Climate change and global warming
(b) Protection of biological diversity
(c) Sustainable development in the 21st century
(d) Forest conservation and management

Answer: (C)

Explanation:

  • Agenda 21 is an 800-page non-binding action program that serves as a guide for all nations into the 21st century. It covers various key topics, including energy conservation, climate change, pollution, water resource protection, soil loss, deforestation, radioactive waste, and disparities of wealth and poverty.
  • The climate change and global warming are addressed through a separate Climate Change Framework agreement. The protection of biological diversity is addressed through a separate Biological Diversity agreement.

Hence, option (c) is the correct answer.

3. Consider the following statements:

1. Anshi National Park is located near the city of Dandeli in the Uttara Kannada District of Karnataka along the border of Goa.
2. The vegetation in Anshi National Park primarily consists of evergreen forests.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Answer: (A)

Explanation:

  • The Anshi National Park is located near the city of Dandeli in the Uttara Kannada District of Karnataka along the border of Goa. This Park is a habitat for Bengal tigers, black panthers and elephants. Hence, statement 1 is correct.
  • The Anshi National Park as having moist deciduous forests, not evergreen forests. The species of flora found in the park including true cinnamon, bamboo, bauhinia, eucalyptus, silver oak, teak, and jamba, but there is no mention of evergreen forests. Hence, statement 2 is incorrect.

Hence, option (a) is the correct answer.

4. Consider the following statements:

1. Estuary is the point at which the mouth of a river enters the sea and freshwater and seawater are mixed.
2. Estuaries are the most productive water bodies in the world as they receive freshwater from river mouths and are washed daily by seawater.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Answer: (C)

Explanation:

  • Estuaries are indeed the points where the mouth of a river meets the sea, resulting in the mixing of freshwater and seawater. This mixing creates a unique environment with varying salinity levels. Hence, statement 1 is correct.
  • Estuaries are highly productive ecosystems due to the combination of freshwater inflow from rivers and the periodic influx of seawater due to tides. The mixing of nutrients and organic matter from land and sea creates favorable conditions for the growth of diverse plant and animal life, making estuaries one of the most productive water bodies in the world. Hence, statement 2 is correct.

Hence, option (c) is the correct answer.

5. Match the following terms with their definitions:

Term Definition
1. Biodegradation The breakdown of organic substances by living organisms.
2. Biomagnification The accumulation of toxins in the food chain.
3. Biodiversity hotspots Regions with a high concentration of endemic species.

How many of the above pairs are correctly matched?

(a) Only one
(b) Only two
(c) All three
(d) None

Answer: (C)

Explanation:

  • Biodegradation refers to the natural process by which organic substances, such as plant matter or waste products, are broken down and decomposed by living organisms, such as bacteria, fungi, or insects. This process helps recycle nutrients and return them to the environment. Hence, pair 1 is correct.
  • Biomagnification refers to the process by which certain substances, such as toxic chemicals or pollutants, become increasingly concentrated in the tissues of organisms as they move up the food chain. Organisms at higher trophic levels, such as predators, tend to accumulate higher levels of these substances, which can have harmful effects on their health and the health of the ecosystem. Hence, pair 2 is correct.
  • Biodiversity hotspots are specific geographic regions that have a high concentration of endemic species, meaning species that are found exclusively in that particular area and nowhere else in the world. These hotspots are recognized for their exceptional biodiversity and conservation value. Hence, pair 3 is correct.

Hence, option (c) is the correct answer.