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Ecology & Environment MCQs for LDC

Practice 20 free ecology & environment multiple choice questions for LDC exam. Instant answers with explanations in Hindi and English.

Strengthen your Ecology & Environment knowledge for LDC with our free curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English, and practice daily to build confidence before the exam.

LDC — Ecology & Environment

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

Assertion (A): It is physically impossible for a stable ecosystem to feature an inverted Pyramid of Energy. Reason (R): The universal laws of thermodynamics dictate that energy is inevitably lost as metabolic heat at every successive trophic level.

Question 2 of 20

Under which specific ecological scenario does the Pyramid of Number appear completely inverted rather than upright?

Question 3 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 4 of 20

Which is the highest and most inclusive level of ecological organization that encompasses all life and ecosystems?

Question 5 of 20

Consider the following statements regarding 'Conservation': 1. It implies the mere preservation of natural resources in their pristine, untouched state. 2. It emphasizes the sustainable management of natural capital to yield benefits for both present and future generations. Which of the statements given above is/are correct?

Question 6 of 20

Which level of ecological organization describes the 'global sum of all ecosystems', effectively acting as the integrated zone of life on Earth?

Question 7 of 20

Consider the following statements: 1. The Forest Conservation Act is an example of an environmental law that necessitates an understanding of ecology for effective enforcement. 2. The primary aim of ecological conservation is to lock away resources so they can never be utilized by humans. Which of the statements given above is/are correct?

Question 8 of 20

Which of the following elements is classified under the 'climatic regimes' of an ecosystem's abiotic components?

Question 9 of 20

Decomposers, scientifically referred to as saprotrophs, fulfill an indispensable ecological role by:

Question 10 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 11 of 20

The term 'Ecology' is derived from the Greek words 'oikos' and 'logos'. What does the word 'oikos' signify?

Question 12 of 20

Assertion (A): The Carbon Cycle is primarily classified as a gaseous biogeochemical cycle. Reason (R): The primary reservoir of carbon utilized by living organisms is atmospheric CO2 absorbed during photosynthesis.

Question 13 of 20

Which specific ecological vulnerabilities make the study of ecology particularly crucial for regional governance and policy execution in Rajasthan?

Question 14 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 15 of 20

For REET candidates aiming to become educators, why is a profound understanding of ecology explicitly stated as 'non-negotiable'?

Question 16 of 20

Which of the following is considered the fundamental unit of ecological study, where scientists observe how physiology and behavior adapt to environmental changes?

Question 17 of 20

Which of the following is NOT an abiotic component mentioned in the context of an organism's habitat?

Question 18 of 20

Which specific components of an ecosystem are categorized as the crucial structural links that bridge the biotic and abiotic realms?

Question 19 of 20

Why is the study of Ecology considered crucial for law enforcement officials like Police Sub-Inspectors?

Question 20 of 20

Assertion (A): The Wildlife Protection Act and Forest Conservation Act are essentially ecological management tools. Reason (R): These acts require a scientific understanding of ecosystems to effectively manage natural capital and drive sustainable development. Select the correct code:

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