UPSC By Aptness.ai
All subjects

Environment

Biodiversity, climate change, pollution, protected areas. Filter by topic or year.

3 questions

  • 2026 · Question 23 · Ecosystems

    Which of the following best explain(s) the rationale for protecting mangrove ecosystems in the context of climate resilience ? 1. Mangroves reduce tidal energy and store freshwater, making them ideal sites for paddy cultivation in saline estuarine belts. 2. Their salt-sensitive roots filter seawater, making mangroves key to converting coastal land into freshwater aquaculture zones. 3. By withstanding tidal surges and offering biomass resources, mangroves function both as natural bio-shields and livelihood bases for rural communities. Select the answer using the code given below :

    Choose your answer
    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

  • 2025 · Question 40 · Ecosystems

    With reference to the planet Earth, consider the following statements : I. Rain forests produce more oxygen than that produced by oceans. II. Marine phytoplankton and photosynthetic bacteria produce about 50% of world’s oxygen. III. Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air. Which of the statements given above is/are correct?

    Choose your answer
    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

  • 2024 · Question 16 · Ecosystems

    One of the following regions has the world’s largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and the possible destruction of which can exert detrimental effect on the global climate. Which one of the following denotes that region ?

    Choose your answer
    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)