What Is the Importance of the Food Chain in the Ecosystem?
This page presents Ecology and Environment MCQ practice for NEET, targeting core exam concepts such as ecosystems, biodiversity, and environmental issues. With NEET’s high focus on this chapter, mastering these MCQs improves recall, accuracy, and boosts your biology rank. Attempt the 20 NEET-level questions, check detailed solutions, and strengthen your exam preparation efficiently.
What are MCQs for Ecology and Environment?
Ecology and Environment MCQs are multiple-choice questions designed around the NEET syllabus, assessing understanding of key concepts, definitions, and applications. These MCQs help NEET aspirants revise ecosystems, biodiversity, threats, conservation methods, and major environmental issues for maximum scoring efficiency.
Why Practice NEET Ecology and Environment MCQs?
Solving NEET Ecology and Environment MCQ sets builds speed, tests conceptual clarity, and reveals strong or weak areas. Regular MCQ practice helps identify important NCERT lines, improves negative marking strategy, and increases confidence before the NEET exam. Repeated practice is vital for achieving top scores in this high-weightage topic.
Practice MCQs: Ecology and Environment for NEET
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Which of the following is an example of an artificial ecosystem?
A. Forest
B. Pond
C. Aquarium
D. Lake
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The primary source of energy for all ecosystems on Earth is:
A. Plants
B. Sunlight
C. Soil
D. Water
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What is the main aim of the Montreal Protocol?
A. Control acid rain
B. Reduce greenhouse gases
C. Protect ozone layer
D. Ban pesticides
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A pyramid of biomass in a terrestrial ecosystem is usually:
A. Inverted
B. Upright
C. Cylindrical
D. Irregular
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Which process is responsible for the conversion of ammonia into nitrites?
A. Nitrification
B. Ammonification
C. Denitrification
D. Nitrogen fixation
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Which of the following is a secondary pollutant?
A. Carbon monoxide
B. Sulphur dioxide
C. Ozone
D. Lead
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Stratospheric ozone depletion is primarily caused by:
A. Carbon dioxide
B. Oxides of nitrogen
C. Chlorofluorocarbons (CFCs)
D. Methane
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The role of decomposers in an ecosystem is to:
A. Convert solar energy
B. Absorb nutrients
C. Break down dead matter
D. Pollinate flowers
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Which succession starts on a previously uninhabited surface?
A. Secondary succession
B. Primary succession
C. Degressive succession
D. Retrogression
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The largest biodiversity hotspot in India is:
A. Eastern Ghats
B. Western Ghats
C. Thar Desert
D. Vindhya Range
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The major greenhouse gas contributing to global warming is:
A. Carbon dioxide
B. Nitrous oxide
C. Methane
D. Ozone
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Ranthambore National Park is located in which state?
A. Maharashtra
B. West Bengal
C. Rajasthan
D. Gujarat
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The process of accumulation of harmful chemicals in higher trophic levels is called:
A. Eutrophication
B. Bioaccumulation
C. Biomagnification
D. Bioremediation
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The term ‘endemic species’ refers to:
A. Species found everywhere
B. Introduced species
C. Species found only in a limited area
D. Alien species
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Which year saw the launch of 'Project Elephant' in India?
A. 1972
B. 1980
C. 1992
D. 2002
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In a food chain, the primary consumers are usually:
A. Producers
B. Carnivores
C. Herbivores
D. Decomposers
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What does the term 'keystone species' refer to?
A. Most abundant species
B. Largest species
C. Species critical to ecosystem function
D. Endangered species
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‘Silent Valley’ National Park is famous for the conservation of:
A. Asiatic Lion
B. Tiger
C. Lion-tailed macaque
D. Indian Bison
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Which is NOT a component of biodiversity?
A. Genetic diversity
B. Species diversity
C. Ecosystem diversity
D. Reproductive diversity
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Which Sustainable Development Goal (SDG) focuses on clean water and sanitation for all?
A. SDG 4
B. SDG 6
C. SDG 13
D. SDG 15
MCQ Answer Key
| Q.No. | Answer | Explanation |
|---|---|---|
| 1 | C | Aquarium is human-made, so artificial. |
| 2 | B | Sunlight provides the original energy for all ecosystems. |
| 3 | C | Montreal Protocol aims to protect the ozone layer. |
| 4 | B | Terrestrial biomass pyramids are usually upright. |
| 5 | A | Nitrification converts ammonia into nitrites via bacteria. |
| 6 | C | Ozone forms in the atmosphere from primary pollutants; it’s secondary. |
| 7 | C | CFCs cause major ozone layer depletion. |
| 8 | C | Decomposers break down dead organic matter. |
| 9 | B | Primary succession begins on new, bare areas. |
| 10 | B | Western Ghats is designated as a biodiversity hotspot. |
| 11 | A | CO2 is the most abundant greenhouse gas related to warming. |
| 12 | C | Ranthambore is in Rajasthan. |
| 13 | C | Biomagnification is the buildup of toxins up trophic levels. |
| 14 | C | Endemic species are restricted to a particular region. |
| 15 | C | Project Elephant started in India in 1992. |
| 16 | C | Herbivores are primary consumers in food chains. |
| 17 | C | Keystone species are critical for maintaining ecosystem balance. |
| 18 | C | Silent Valley is known for lion-tailed macaque conservation. |
| 19 | D | Reproductive diversity isn’t a standard biodiversity component. |
| 20 | B | SDG 6 is about clean water and sanitation. |
Explanations clarify reasoning behind each answer and help students understand important NEET concepts.
How do Ecology and Environment MCQs help in NEET?
Practicing these Ecology and Environment MCQs boosts familiarity with NEET’s exam pattern, enhances recall, and exposes typical question twists. Thorough MCQ-based revision is proven to reduce silly mistakes and improve conceptual retention. Use Vedantu’s chapterwise biology tests for a competitive advantage and targeted learning.
Tips for High Scores & Next Steps
- Revise NCERT highlights for ecology and environment before attempting MCQs.
- Regularly practice timed sets to build speed and accuracy.
- Review explanations for each mistake to fix weak concepts.
- Practice more via the NEET Ecology and Environment Important Questions set and NEET Biology Chapterwise Tests for additional mastery.
- Attempt the Previous Year Biology Papers for real-exam exposure.
Mastering Ecology and Environment MCQs is crucial for NEET success. Consistent practice clarifies key ideas, strengthens weak areas, and sharpens exam instincts. Vedantu’s NEET-centric MCQ sets, answer explanations, and chapterwise practice resources ensure comprehensive coverage, higher confidence, and a better score in Biology. Keep practicing and aim for your best!
FAQs on Practice Ecology And Environment MCQ Questions with Answers
1. What is ecology and environment MCQ?
Ecology and environment MCQ refers to multiple-choice questions based on key principles, terms, and concepts from the Ecology and Environment section of the NEET Biology syllabus. These MCQs help students test and revise:
- Principles of ecology (populations, ecosystems, food webs)
- Biodiversity and conservation
- Environmental issues and pollution
- NCERT intext facts and applied questions
2. Where can I find NEET ecology practice questions?
You can access NEET ecology practice questions through chapterwise tests, NCERT-based question banks, and online MCQ platforms like Vedantu. Top sources for effective practice include:
- NEET Biology Chapterwise Test: Ecology and Environment
- Ecology-specific MCQ PDFs downloadable from educational portals
- Previous year NEET Biology papers focusing on ecology topics
- Mock tests and biology MCQ apps
3. Are Ecology MCQs important for NEET?
Ecology MCQs are highly important for NEET as the Ecology and Environment section carries significant weightage in the biology paper.
- Questions cover essential NCERT chapters like Organisms and Populations, Biodiversity, and Environmental Issues.
- Regular practice ensures strong command over concept-based and factual MCQs.
- Many questions are directly taken or adapted from NCERT text and diagrams.
4. Which chapters cover ecology in NEET?
The Ecology portion in NEET Biology typically includes the following NCERT chapters:
- Organisms and Populations
- Ecosystem
- Biodiversity and Conservation
- Environmental Issues
5. How to download ecology MCQ PDFs?
To download ecology MCQ PDFs for NEET:
- Visit reputable NEET preparation websites or e-learning platforms.
- Search for Ecology and Environment MCQs with answers PDF.
- Click the download option or sign up for access.
- Many platforms also provide solutions and answer keys in the PDF files.
6. How is the chapterwise practice test for ecology scored?
The chapterwise practice test for Ecology uses the NEET exam scoring pattern:
- Each correct answer: +4 marks
- Each incorrect answer: -1 mark (negative marking applies)
- Unattempted: 0 marks
7. What are the high-yield topics in ecology for NEET?
High-yield ecology topics for NEET include:
- Food chains and food webs
- Trophic levels and energy flow
- Population interactions (predation, symbiosis, competition)
- Biodiversity and its conservation methods
- Major pollutants and environmental issues
- Ecosystem structure and ecological succession
8. Can I get instant answer keys for ecology MCQs?
Yes, most online NEET practice platforms provide instant answer keys for ecology MCQs immediately after you submit the test. Benefits include:
- Immediate feedback on your answers
- Detailed explanations and solutions
- Identification of weak and strong concepts
9. How often should I repeat ecology chapterwise tests for best retention?
To maximize retention, repeat ecology chapterwise tests every 2-3 weeks. For optimal results:
- Attempt full-length practice papers weekly
- Review answer keys and explanations after every attempt
- Focus extra practice on weak ecology subtopics
10. How can I use answer keys for active learning in ecology?
Use answer keys as a learning tool by:
- Reviewing every incorrect answer and analyzing the detailed solution
- Making revision notes of frequent mistakes
- Practicing similar MCQs from the same subtopic
- Referring back to NCERT lines for misunderstood questions
