SawaalBoxसवाल बॉक्स

Ecosystems & Ecology Concepts

49 questions in Environment & Ecology.

Asked in 2026, 2024, 2023, 2022, 2021, 2019, 2018, 2017, 2015, 2014, 2013

2026 · Q33Environment & EcologyEcosystems & Ecology Conceptsmoderate

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 :

  1. (a)1 only
  2. (b)1 and 2
  3. (c)2 and 3
  4. (d)3 only
Show answerHide answer

Official answer(d) 3 only

2023 · Q10Environment & EcologyEcosystems & Ecology Conceptseasy

With reference to India’s projects on connectivity, consider the following statements : 1. East-West Corridor under Golden Quadrilateral Project connects Dibrugarh and Surat. 2. Trilateral Highway connects Moreh in Manipur and Chiang Mai in Thailand via Myanmar. 3. Bangladesh-China-India-Myanmar Economic Corridor connects Varanasi in Uttar Pradesh with Kunming in China. How many of the above statements are correct?

  1. (a)Only one
  2. (b)Only two
  3. (c)All three
  4. (d)None
Show answerHide answer

Official answer(d) None

2021 · Q60Environment & EcologyEcosystems & Ecology Conceptseasy

"Leaf litter decomposes faster than in any other biome and as a result the soil surface is often almost bare. Apart from trees, the vegetation is largely composed of plant forms that reach up into the canopy vicariously, by climbing the trees or growing as epiphytes, rooted on the upper branches of trees." This is the most likely description of

  1. (a)coniferous forest
  2. (b)dry deciduous forest
  3. (c)mangrove forest
  4. (d)tropical rain forest
Show answerHide answer

Official answer(d) tropical rain forest

2021 · Q61Environment & EcologyEcosystems & Ecology Conceptsmoderate

The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is generally kept in check by one or more or a combination of some conditions. Which of the following are such conditions? 1. Burrowing animals and termites 2. Fire 3. Grazing herbivores 4. Seasonal rainfall 5. Soil properties Select the correct answer using the code given below.

  1. (a)1 and 2
  2. (b)4 and 5
  3. (c)2, 3 and 4
  4. (d)1, 3 and 5
Show answerHide answer

Official answer(c) 2, 3 and 4

2018 · Q87Environment & EcologyEcosystems & Ecology Conceptsmoderate

Consider the following statements : 1. Most of the world's coral reefs are in tropical waters. 2. More than one-third of the world's coral reefs are located in the territories of Australia, Indonesia and Philippines. 3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests. Which of the statements given above is/are correct ?

  1. (a)1 and 2 only
  2. (b)3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
Show answerHide answer

Official answer(d) 1, 2 and 3

2017 · Q21Environment & EcologyEcosystems & Ecology Conceptsmoderate

Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences ? 1. Pollination of some plants could be adversely affected. 2. There could be a drastic increase in the fungal infections of some cultivated plants. 3. It could lead to a fall in the population of some species of wasps, spiders and birds. Select the correct answer using the code given below :

  1. (a)1 only
  2. (b)2 and 3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
Show answerHide answer

Official answer(c) 1 and 3 only