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GK QuizEnvironment & Ecology

Environment & Ecology Mixed Quiz: Set 53

  • 20 questions
  • 20 minutes
  • Difficulty: Medium
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About this quiz

Set 53 of the Environment & Ecology mixed quiz has 20 multiple-choice questions from 12 different topics of the subject: Biodiversity and Its Conservation, Wild Life (Protection) Act, 1972 and Its Schedules, Carbon Credits, Net Zero and Green Finance and more. 3 of them were asked in real previous-year papers. A topic quiz checks one chapter; this set revises the whole subject at once, the way an exam paper does, where the next question can come from any chapter. Every question carries an explanation of why the correct option is right and why the others are wrong. Keep to the timer, read the explanations at the end, and go back to the notes of any topic where you slipped.

Questions in this quiz

20 questions with answers and explanations

Q1.Environment & EcologyAsked in: UPSC Civil Services · CSE Prelims 2026, GS Paper IMedium

Consider the following statements about Rhynchostylis retusa (Foxtail orchid) : 1. It is an epiphytic orchid. 2. The species is endemic to North-east India. 3. It is the State flower of Arunachal Pradesh and Assam. Which of the statements given above is/are correct?

  1. A.1 only
  2. B.1 and 3
  3. C.2 and 3
  4. D.3 only
Show answer
Correct answer: B. 1 and 3

The Foxtail orchid grows on trees as an epiphyte and is the state flower of both Arunachal Pradesh and Assam, but it is not confined to North-east India.

Q2.Environment & EcologyEasy

Who is the chairperson of the National Board for Wild Life?

  1. A.The President of India
  2. B.The Prime Minister of India
  3. C.The Union Minister of Environment, Forest and Climate Change
  4. D.The Chief Wild Life Warden
Show answer
Correct answer: B. The Prime Minister of India

The National Board for Wild Life was created by the amendment of 2002 under Section 5A of the Act as the apex advisory body on wildlife, and the Prime Minister chairs it.

Q3.Environment & EcologyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IHard

With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/are correct?

I. It can be used as a way of carbon sequestration.

II. It can be a valuable approach for plastic production and in food processing.

III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel.

Select the correct answer using the code given below.

  1. A.I and II only
  2. B.III only
  3. C.I, II and III
  4. D.None of the above statements is correct
Show answer
Correct answer: C. I, II and III

Direct Air Capture pulls carbon dioxide straight out of the open air, and that CO2 can either be stored underground or used to make products.

Q4.Environment & EcologyAsked in: SSC CGL · 18 Jul 2023, Shift 4Medium

Where in India are the Sundari trees that provide durable and hard timber found?

  1. A.Tropical Deciduous Forests
  2. B.Mangrove Forests
  3. C.Montane Forests
  4. D.Tropical Evergreen Forests
Show answer
Correct answer: B. Mangrove Forests

The sundari is a mangrove tree of the tidal deltaic forests of the Coasts biogeographic zone, and the Sundarbans of the Ganga-Brahmaputra delta take their name from it; its wood is hard and durable, and like other mangroves it has salt tolerant roots and breathing roots in the waterlogged mud.

Q5.Environment & EcologyEasy

Kaziranga, with its alluvial grasslands and the one-horned rhinoceros, represents which biogeographic zone?

  1. A.Gangetic Plain
  2. B.Himalaya
  3. C.North-East India
  4. D.Deccan Peninsula
Show answer
Correct answer: C. North-East India

The North-East India zone has two parts, the Brahmaputra valley and the north-eastern hills, and Kaziranga lies in the valley part, where annual flooding maintains tall wet grasslands that support the one-horned rhinoceros, wild buffalo, swamp deer and hog deer.

Q7.Environment & EcologyEasy

Ocean acidification is caused mainly by the absorption of which gas by seawater?

  1. A.Nitrogen
  2. B.Carbon dioxide
  3. C.Methane
  4. D.Sulphur dioxide
Show answer
Correct answer: B. Carbon dioxide

Carbon dioxide dissolves in seawater and reacts with water to form carbonic acid, which dissociates into bicarbonate and hydrogen ions; the extra hydrogen ions lower the pH, and they also combine with carbonate ions, leaving less carbonate for shells and coral skeletons.

Q9.Environment & EcologyEasy

The Bureau of Energy Efficiency was established under which of the following Acts?

  1. A.The Electricity Act, 2003
  2. B.The Energy Conservation Act, 2001
  3. C.The Environment (Protection) Act, 1986
  4. D.The Air (Prevention and Control of Pollution) Act, 1981
Show answer
Correct answer: B. The Energy Conservation Act, 2001

That Act created the Bureau of Energy Efficiency as a statutory body and gave it the power to prescribe efficiency standards, run the labelling programme and prepare the building code; the Bureau came into existence on 1 March 2002 under the Ministry of Power.

Q14.Environment & EcologyEasy

At which conference was the United Nations Framework Convention on Climate Change opened for signature?

  1. A.Stockholm Conference on the Human Environment, 1972
  2. B.Earth Summit at Rio de Janeiro, 1992
  3. C.World Summit on Sustainable Development, Johannesburg, 2002
  4. D.Montreal Conference on the Ozone Layer, 1987
Show answer
Correct answer: B. Earth Summit at Rio de Janeiro, 1992

The United Nations Conference on Environment and Development, held in June 1992 and popularly called the Earth Summit, opened three agreements for signature: the climate convention, the Convention on Biological Diversity and Agenda 21.

Q16.Environment & EcologyMedium

The hangul or Kashmir stag, the subject of a dedicated conservation project, is now confined mainly to which national park?

  1. A.Dachigam National Park
  2. B.Hemis National Park
  3. C.Great Himalayan National Park
  4. D.Valley of Flowers National Park
Show answer
Correct answer: A. Dachigam National Park

The correct answer is A, Dachigam National Park, near Srinagar, which holds almost the whole surviving population of the hangul, the only species of red deer found in India and the state animal of Jammu and Kashmir.

Q18.Environment & EcologyEasy

On a BEE star label pasted on an appliance, a greater number of stars indicates that the appliance

  1. A.consumes less electricity for the same output
  2. B.consumes more electricity for the same output
  3. C.is cheaper than lower rated models
  4. D.has a longer warranty period
Show answer
Correct answer: A. consumes less electricity for the same output

The star label places an appliance in a band from one star to five stars on the basis of its energy performance, so a five-star model is the most efficient and will show the lowest annual energy consumption in its size class.

Q19.Environment & EcologyEasy

Eutrophication of coastal waters leads most directly to which condition?

  1. A.A rise in dissolved oxygen that helps fish
  2. B.Depletion of dissolved oxygen and the formation of dead zones
  3. C.A fall in water temperature
  4. D.An increase in water salinity
Show answer
Correct answer: B. Depletion of dissolved oxygen and the formation of dead zones

Eutrophication begins with nitrogen and phosphorus from fertiliser, detergent and sewage. The nutrients feed an algal bloom; the bloom is short-lived, and when it dies the bacteria that decompose the mass consume large amounts of dissolved oxygen.

Q20.Environment & EcologyEasy

UJALA, the Government scheme for efficient lighting, stands for

  1. A.Unnat Jyoti by Affordable LEDs for All
  2. B.Universal Jyoti and Lighting Assistance
  3. C.Urban Jyoti and Affordable Lamps for All
  4. D.Unnat Jan Aadhar Lighting Abhiyan
Show answer
Correct answer: A. Unnat Jyoti by Affordable LEDs for All

The programme began as the Domestic Efficient Lighting Programme and was launched under the UJALA name on 5 January 2015, selling LED bulbs, tubelights and efficient ceiling fans to domestic consumers at a price far below the retail rate.

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