Environment: Multi-statement (How Many Style) PYQ.
UPSC Prelims Environment previous year questions in the "Multi-statement (How Many Style)" question pattern — real questions with answers and explanations.
5 questions · sorted by year
2025Multi-statement (How Many Style)Pollution, Waste & Renewables
Consider the following:
I. Cigarette butts
II. Eyeglass lenses
III. Car tyres
How many of them contain plastic?
A.Only one
B.Only two
C.All the three
D.None of the above statements is correct
Explanation: * Option 1 is correct: Cigarette filters are made of cellulose acetate, which is a persistent form of toxic plastic pollution. * Option 2 is correct: Many eyeglass lenses are made of plastic materials like CR-39 (Columbia resin #39), polycarbonate, and Trivex because they are lightweight and shatter-resistant. * Option 3 is correct: Car tyres consist of synthetic rubber polymers; tyre particles shed during driving are a major, overlooked contributor to microplastic pollution, accounting for 28% of microplastics entering the environment globally.
Select an option to reveal the answer
📌 Environmental PollutionRelevance 60%
2024Multi-statement (How Many Style)Ecology & Wildlife Conservation
Consider the following:
1. Carabid beetles
2. Centipedes
3. Flies
4. Termites
5. Wasps
Parasitoid species are found in how many of the above kind of organisms?
A.Only two
B.Only three
C.Only four
D.All five
Explanation: * In evolutionary biology, a parasitoid lives in close, destructive association with a host, ultimately killing it. * Item 1 contains parasitoid species: Several specialized genera of carabid beetles (such as Brachinus or Lebia) have larvae that develop as extreme ectoparasitoids. * Items 3 and 5 contain parasitoid species: The vast majority of documented insect parasitoids belong either to the Hymenoptera order (wasps and bees) or the Diptera order (flies). * Items 2 (centipedes, which are generalist macroscopic predators) and 4 (termites, which are herbivorous detritivores) do not contain parasitoid species. * Therefore, parasitoid species are found in exactly three of the listed groups.
Select an option to reveal the answer
📌 Plant Diversity of IndiaRelevance 55%
2024Multi-statement (How Many Style)Forests, Parks & Botany
Consider the following plants:
1. Groundnut
2. Horse-gram
3. Soybean
How many of the above belong to the pea family?
A.Only one
B.Only two
C.All three
D.None of the above statements is correct
Explanation: * All three plants belong to the pea family: The botanical family Fabaceae (or Leguminosae), commonly referred to as the legume, bean, or pea family, constitutes an agriculturally vital group of flowering plants. * Item 1 is a member: Groundnut (or peanut) is botanically classified as a member of the Fabaceae family. * Item 2 is a member: Horse-gram (Macrotyloma uniflorum) is a tropical annual legume native to South Asia belonging to the Fabaceae family. * Item 3 is a member: Soybean is a widely cultivated oilseed legume native to East Asia that also falls under the Fabaceae family.
Select an option to reveal the answer
📌 AgricultureRelevance 95%
2024Multi-statement (How Many Style)Ecology & Wildlife Conservation
Consider the following:
1. Butterflies
2. Fish
3. Frogs
How many of the above have poisonous species among them?
A.Only one
B.Only two
C.All three
D.None of the above statements is correct
Explanation: * Item 1 is correct: The African giant swallowtail (Papilio antimachus) is a highly poisonous butterfly whose tissues hold high levels of toxic cardiac steroid cardenolides. * Item 2 is correct: Numerous marine fish synthesize or deliver potent toxins; the Reef Stonefish is highly venomous, using dorsal spines to inject fatal mixtures. * Item 3 is correct: Many amphibians carry chemical skin defenses (e.g., poison dart frogs); furthermore, species like Bruno's casque-headed frog use bony spines to inject venom. * Therefore, all three categories contain toxic or poisonous species.
🔒 Verify your phone to reveal the answer & explanation
📌 Animal Diversity of IndiaRelevance 55%
2024Multi-statement (How Many Style)Forests, Parks & Botany
Consider the following:
1. Cashew
2. Papaya
3. Red sanders
How many of the above trees are actually native to India?
A.Only one
B.Only two
C.All three
D.None of the above statements is correct
Explanation: * Item 1 is incorrect: The cashew tree (Anacardium occidentale) is native to northeastern Brazil and was introduced to India by Portuguese traders in the late 16th century. * Item 2 is incorrect: The Papaya plant is native to the tropical zones of Central America and southern Mexico, arriving in India via historical trade links crossing the Philippines. * Item 3 is correct: Red Sanders (Pterocarpus santalinus) is an endemic tree species whose native wild habitat is strictly restricted to specific dry deciduous forest zones of Andhra Pradesh, India. * Therefore, only one tree (Red Sanders) is native to India.
🔒 Verify your phone to reveal the answer & explanation
📌 Plant Diversity of IndiaRelevance 55%
2 answers locked
You've used your 3 free Environment answers. Verify your phone to unlock 20 more — free.