Environment

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

7 questions

2021 · Question 22 · Ecology
Consider the following kinds of organisms : 1. Copepods 2. Cyanobacteria 3. Diatoms 4. Foraminifera Which of the above are primary producers in the food chains of oceans?
Choose your answer(a)1 and 2(b)2 and 3(c)3 and 4(d)1 and 4
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2021 · Question 26 · Ecology
Which one of the following is a filter feeder?
Choose your answer(a)Catfish(b)Octopus(c)Oyster(d)Pelican
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2021 · Question 27 · Ecology
In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle?
Choose your answer(a)Carbon cycle(b)Nitrogen cycle(c)Phosphorus cycle(d)Sulphur cycle
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2021 · Question 28 · Ecology
Which of the following are detritivores? 1. Earthworms 2. Jellyfish 3. Millipedes 4. Seahorses 5. Woodlice Select the correct answer using the code given below.
Choose your answer(a)1, 2 and 4 only(b)2, 3, 4 and 5 only(c)1, 3 and 5 only(d)1, 2, 3, 4 and 5
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2021 · Question 30 · Ecology
Which of the following have species that can establish symbiotic relationship with other organisms? 1. Cnidarians 2. Fungi 3. Protozoa Select the correct answer using the code given below.
Choose your answer(a)1 and 2 only(b)2 and 3 only(c)1 and 3 only(d)1, 2 and 3
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2021 · Question 60 · Ecology
“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
Choose your answer(a)coniferous forest(b)dry deciduous forest(c)mangrove forest(d)tropical rain forest
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2021 · Question 61 · Ecology
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.
Choose your answer(a)1 and 2(b)4 and 5(c)2, 3 and 4(d)1, 3 and 5
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

Consider the following kinds of organisms : 1. Copepods 2. Cyanobacteria 3. Diatoms 4. Foraminifera Which of the above are primary producers in the food chains of oceans?

Which one of the following is a filter feeder?

In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle?

Which of the following are detritivores? 1. Earthworms 2. Jellyfish 3. Millipedes 4. Seahorses 5. Woodlice Select the correct answer using the code given below.

Which of the following have species that can establish symbiotic relationship with other organisms? 1. Cnidarians 2. Fungi 3. Protozoa Select the correct answer using the code given below.