MCQ
Environmental & Ecological Changes MCQ - Practice Questions with Answers
Solve 732 Environmental & Ecological Changes questions for RAS/RPSC preparation.
Practice questions
Q1According to UNEP 2025, global emissions must fall by what percentage for the 1.5 C target by 2035?
UNEP says emissions must fall 55% for 1.5 C and 35% for 2 C targets by 2035.
Q2Consider the following statements about ecosystem services and nature-based approaches: 1. Wetlands act as natural water filters, provide flood control, serve as breeding grounds for many species and contribute to groundwater recharge. 2. Nature-based Solutions protect, manage and restore ecosystems while providing societal benefits such as climate adaptation and disaster risk reduction. 3. Mangrove restoration for coastal protection and urban forests for heat reduction are examples of Nature-based Solutions. 4. Rhizophora mangroves are distinctive because of arching stilt or prop roots and viviparous germination. Which of the statements given above are correct?
Statement 1 is correct because wetlands provide all four listed services: filtration, flood control, breeding grounds and groundwater recharge. Statement 2 is correct because Nature-based Solutions protect, manage and restore ecosystems while producing societal benefits, including climate adaptation and disaster risk reduction. Statement 3 is correct because mangrove restoration for coastal protection and urban forests for heat reduction as examples. Statement 4 is correct because Rhizophora mangroves have arching stilt or prop roots and show viviparous germination.
Q3Varanasi set a Guinness World Record on March 1, 2026, by planting 2.51 lakh saplings in one hour using which technique?
The mega plantation drive used the Miyawaki technique at the Sujabad-Domari area on the banks of the Ganga, breaking China's previous record of 1.53 lakh saplings.
Q4Consider the following statements: 1. India's Carbon Credit Trading Scheme was notified in June 2023 under the Energy Conservation (Amendment) Act, 2022 and is implemented by the Bureau of Energy Efficiency. 2. Voluntary carbon markets are mandated cap-and-trade systems like the EU ETS and are not driven by corporate sustainability goals. 3. India's concern about CBAM includes that it violates CBDR, acts as a disguised trade barrier and ignores India's lower per-capita emissions. 4. Green GDP is calculated by adding environmental degradation costs and natural resource depletion to conventional GDP. Which of the statements given above are correct?
Statement 1 is correct because India's CCTS in June 2023 under the Energy Conservation (Amendment) Act, 2022 and identifies BEE as the implementing body. Statement 2 is incorrect because voluntary carbon markets are driven by voluntary offsets, corporate sustainability, CSR and ESG commitments; mandated cap-and-trade belongs to compliance markets. Statement 3 is correct because India's CBAM objection is framed around CBDR, disguised trade protection and lower per-capita emissions. Statement 4 is incorrect because green GDP subtracts environmental degradation costs and natural resource depletion from conventional GDP.
Q5The term 'biological desert' is sometimes used for:
Monoculture plantations of exotic species (eucalyptus, acacia) are sometimes called 'biological deserts' because they support very little native biodiversity compared to natural forests.
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More questions
6The REDD+ programme is related to:
7The Earth Overshoot Day marks the date when:
8Which international standard is commonly used to verify voluntary carbon credits?
9Which renewable-energy or non-fossil power capacity target is associated with India's climate pledge and later 2030 clean-energy push?
10Which gas leaked in the 1984 Bhopal Gas Tragedy?
11Consider the following statements about the National Green Tribunal: 1. It was established in 2010 for effective and expeditious disposal of environmental protection cases. 2. Its principal bench is in Bhopal. 3. It has benches only in Delhi and Chennai. Which of the statements given above is correct?
12The SHP scheme has allocated how much for preparing Detailed Project Reports (DPRs)?
13What is 'green GDP'?
14Debt-for-nature swap involves:
15The National Clean Energy Fund (NCEF) in India was created by imposing a cess on: