2021
Environment & Ecology
Subject Collection
UPSC Prelims 2021 Environment & Ecology
Environment & Ecology PYQs for UPSC Prelims 2021.
2021
Environment & Ecology
Consider the following animals: 1. Hedgehog 2. Marmot 3. Pangolin To reduce the chance of being captured by predators, which of the above organisms rolls up/roll up and protects/ protect its/their vulnerable parts?
2021
Environment & 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.
2021
Environment & 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?
2021
Environment & Ecology
With reference to the ‘New York Declaration on Forests’. Which of the following statements are correct? 1. It was first endorsed at the United Nations Climate Summit in 2014. 2. It endorses a global timeline to end t...
2021
Environment & Ecology
Which one of the following is a filter feeder?
2021
Environment & Ecology
The ‘Common Carbon Metric’, supported by UNEP, has been developed for
2021
Environment & Ecology
Among the following, which one is the least water-efficient crop?
2021
Environment & Ecology
How is permaculture farming different from conventional chemical farming? 1. Permaculture Farming discourages monocultural practices but in conventional chemical farming, monoculture practices are pre-dominant. 2. Con...
2021
Environment & Ecology
In the context of India’s preparation for Climate-smart Agriculture, consider the following statements: 1. The ‘Climate-Smart Village’ approach in India is a part of a project led by the Climate Change, Agriculture an...
2021
Environment & 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?
2021
Environment & Ecology
What is blue carbon?
2021
Environment & Ecology
Triclosan considered harmful when exposed to high levels for a long time, is most likely present in which of the following?
2021
Environment & Ecology
Consider the following statements: **Statement 1:** The United Nations Capital Development Fund (UNCDF) and the Arbor Day Foundation have recently recognized Hyderabad as 2020 Tree City of the World. **Statement 2:**...
2021
Environment & Ecology
With reference to furnace oil, consider the following statements: 1. It is a product of oil refineries. 2. Some industries use it to generate power. 3. Its use causes sulphur emissions into Environment. Which of the...
2021
Environment & Ecology
‘R2 Code of Practices constitutes a tool available for promoting the adoption of
2021
Environment & Ecology
Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental pollutants from which of the following? 1. Brakes of motor vehicles 2. Engines of motor vehicles 3. Microwave stoves ...
2021
Environment & Ecology