Practice Questions

UPSC Prelims - Environment and Ecology - Previous Year Questions

The organisms “Cicada, Froghopper, and Pond skater” are:

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements: Statement-I: Many chewing gums found in the market are a source o...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following pairs: 1. Brazil – Indri, 2. Indonesia – Elk, 3. Madagascar – Bonobo. How man...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements: 1. Lions do not have a particular breeding season. 2. Unlike most...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following: 1. Battery storage, 2. Biomass generators, 3. Fuel cells, 4. Rooftop solar p...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which one of the following shows a unique relationship with an insect that has coevolved with it and...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following: 1. Butterflies, 2. Fish, 3. Frogs. How many of the above have poisonous spec...

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) used in consumer products, co...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following kinds of organisms: 1. Carabid beetles, 2. Centipedes, 3. Flies, 4. Termites,...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements regarding the Indian Flying Fox: Statement-I: It is placed under t...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following materials: 1. Agricultural residues, 2. Corn grain, 3. Wastewater treatment s...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements (2023): Statement-I: India, despite having uranium deposits, depen...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements (2023): Statement-I: Marsupials are not naturally found in India. ...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Invasive Species Specialist Group belongs to which one of the following organisations?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following fauna (2023): 1. Lion-tailed Macaque, 2. Malabar Civet, 3. Sambar Deer. How m...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which of the following organisms perform the waggle dance to indicate the direction and distance to ...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements (2023): 1. Some mushrooms have medicinal properties. 2. Some mushr...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements regarding Indian squirrels (2023): 1. They build nests by making b...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements (2023): 1. Some microorganisms can grow in environments above the ...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which one of the following makes a tool with a stick to scrape insects from a hole in a tree or log?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following: 1. Aerosols, 2. Foam agents, 3. Fire retardants, 4. Lubricants. In the makin...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following infrastructure sectors (2023): 1. Affordable housing, 2. Mass rapid transport...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements regarding mercury pollution (2023): 1. Gold mining is a source of ...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements (2023): Statement-I: India extracts more than a quarter of the wor...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements regarding Biodiversity Management Committees (2023): 1. They are k...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following statements regarding Community Reserves (2023): Once an area is notified as a...

UPSC Prelims - Environment and Ecology - Previous Year Questions

In nature, which of the following is/are most likely to be found surviving on a surface without soil...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Consider the following kinds of organisms: Copepods, Cyanobacteria, Diatoms, Foraminifera. Which of ...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which of the following are detritivores?

UPSC Prelims - Environment and Ecology - Previous Year Questions

In which biogeochemical cycle is the weathering of rocks the main source of nutrient release?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which of the following organisms have species that form symbiotic relationships?

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to water on Earth, which statement is correct?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which one of the following is used in preparing a natural mosquito repellent?

UPSC Prelims - Environment and Ecology - Previous Year Questions

The vegetation of savannah is kept in check by which factors?

UPSC Prelims - Environment and Ecology - Previous Year Questions

How is permaculture farming different from conventional chemical farming?

UPSC Prelims - Environment and Ecology - Previous Year Questions

In India, which of the following are considered practices of eco-friendly agriculture?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Why is there concern about copper smelting plants in India?

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to furnace oil, which of the following statements are correct?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Magnetite particles, suspected of causing neurodegenerative problems, are generated as pollutants fr...

UPSC Prelims - Environment and Ecology - Previous Year Questions

The formation of the ozone hole in the Antarctic is due to which of the following?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Regarding carbon credits, which statement is NOT correct?

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to India's Central Acts relevant to biodiversity conservation, which Acts have bearin...

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to the Bombay Natural History Society (BNHS), which of the following statements is co...

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to Eco-Sensitive Zones in India, which of the following statements is correct?

UPSC Prelims - Environment and Ecology - Previous Year Questions

The most important strategy for conservation of biodiversity along with traditional human life is th...

UPSC Prelims - Environment and Ecology - Previous Year Questions

With reference to the Neem tree, which of the following statements are correct?

UPSC Prelims - Environment and Ecology - Previous Year Questions

Other than poaching, what are the possible reasons for the decline in the population of Ganges River...

UPSC Prelims - Environment and Ecology - Previous Year Questions

Which one of the following birds is known to stalk alongside cattle to catch disturbed insects?

UPSC Prelims - Environment and Ecology - Previous Year Questions

In India, extended producer responsibility was introduced in which of the following?

UPSC Prelims - Environment and Ecology - Previous Year Questions

What are the advantages of fertigation in agriculture? (2020)