Ecology & Environment MCQs for CET 12th Level
Practice Ecology & Environment under Science & Tech for CET 12th Level with 20 free MCQs in Hindi and English.
CET 12th Level — Ecology & Environment
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
What is the primary ecological consequence of a highly complex food web, as opposed to a simple, linear food chain?
Question 2 of 20
Which specific natural disturbances act as the typical catalysts for Secondary Succession to begin?
Question 3 of 20
A deep, complex forest habitat is inhabited simultaneously by tigers, deer, bears, and multiple diverse species of birds coexisting in an intricate ecological web. This specific scenario is primarily a strong indicator of which type of biological diversity?
Question 4 of 20
A disastrous ecological consequence of rapid industrialization, which terrestrial forest biome globally consistently records the absolute highest rates of anthropogenic deforestation and structural fragmentation?
Question 5 of 20
Consider the following statements regarding Ecological Succession: 1. Primary succession takes place in areas previously occupied by a community that was wiped out by a disturbance like a forest fire. 2. Lichens are considered pioneer species capable of initiating soil formation on bare rocks. Which of the statements given above is/are correct?
Question 6 of 20
Why is the Pyramid of Biomass consistently inverted in deep aquatic ecosystems compared to terrestrial ecosystems?
Question 7 of 20
According to the standardized National Air Quality Index (IND-AQI) maintained by the Central Pollution Control Board (CPCB), an AQI value falling precisely within the range of 101-200 is categorized under which health standard?
Question 8 of 20
Which phase of ecosystem dynamics involves the initial weathering of solid rock by pioneer species like lichens to form primitive soil?
Question 9 of 20
According to Lindeman's 10% Law of energy transfer, what exactly accounts for the 90% of energy that is NOT assimilated into the biomass of the subsequent trophic level?
Question 10 of 20
Recognized for its exemplary ecological transition, which of the following villages in Rajasthan is systematically transforming into a 'zero-waste' model community through targeted Green Technology interventions?
Question 11 of 20
Consider the following statements regarding Producers (Autotrophs) in an ecosystem: 1. They synthesize complex organic food from simple inorganic substances. 2. All autotrophs depend exclusively on photosynthesis to synthesize their food. Which of the statements given above is/are correct?
Question 12 of 20
Match the fundamental Ecological term in List-I with its core characteristic in List-II: List-I A. Environment B. Ecology C. Conservation D. Homeostasis List-II 1. Sustainable management of natural capital 2. Stable, self-regulating equilibrium 3. Sum total of physical, chemical, and biological factors 4. Scientific study of reciprocal relationships
Question 13 of 20
In the study of ecosystem dynamics, the term 'Climax Community' specifically refers to:
Question 14 of 20
Which foundational ecological concept was formulated by the British ecologist Charles Elton?
Question 15 of 20
The dynamic matrix of the environment is composed of three primary interacting spheres. Which of the following correctly identifies these components?
Question 16 of 20
In the context of the environment, what does the term 'Abiotic' refer to?
Question 17 of 20
Which of the following describes the flow of energy and the cycling of nutrients?
Question 18 of 20
Which of the following defines a 'Population' in ecological terms?
Question 19 of 20
What is the ultimate condition defining a 'Climax Community' in the timeline of ecological succession?
Question 20 of 20