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Class 4 Exam  >  Class 4 Tests  >  Olympiad Test Level 2: Earth and Environment - Class 4 MCQ

Olympiad Test Level 2: Earth and Environment - Class 4 MCQ


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10 Questions MCQ Test - Olympiad Test Level 2: Earth and Environment

Olympiad Test Level 2: Earth and Environment for Class 4 2025 is part of Class 4 preparation. The Olympiad Test Level 2: Earth and Environment questions and answers have been prepared according to the Class 4 exam syllabus.The Olympiad Test Level 2: Earth and Environment MCQs are made for Class 4 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test Level 2: Earth and Environment below.
Solutions of Olympiad Test Level 2: Earth and Environment questions in English are available as part of our course for Class 4 & Olympiad Test Level 2: Earth and Environment solutions in Hindi for Class 4 course. Download more important topics, notes, lectures and mock test series for Class 4 Exam by signing up for free. Attempt Olympiad Test Level 2: Earth and Environment | 10 questions in 15 minutes | Mock test for Class 4 preparation | Free important questions MCQ to study for Class 4 Exam | Download free PDF with solutions
Olympiad Test Level 2: Earth and Environment - Question 1
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Cutting down many trees without replanting leads mainly to

Detailed Solution for Olympiad Test Level 2: Earth and Environment - Question 1
Without trees, soil loses its structure and gets damaged by waste and erosion, which is called soil pollution.
Olympiad Test Level 2: Earth and Environment - Question 2
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Acid rain forms when sulfur dioxide mixes with

Detailed Solution for Olympiad Test Level 2: Earth and Environment - Question 2
Sulfur dioxide from burning fuels joins water vapour in clouds, creating acids that fall as acid rain.
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Olympiad Test Level 2: Earth and Environment - Question 3
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Which waste does NOT rot and must be recycled?

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Plastics cannot break down easily, so they must be collected and recycled rather than left to rot.
Olympiad Test Level 2: Earth and Environment - Question 4
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Acid rain can damage
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Acid rain makes stone and metal buildings and statues crumble and also harms plants.
Olympiad Test Level 2: Earth and Environment - Question 5
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Throwing garbage on the ground causes
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Litter on land seeps harmful chemicals into the soil, making it dirty and unsafe for plants.
Olympiad Test Level 2: Earth and Environment - Question 6
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To reduce air pollution, people can
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Walking or bicycling for short trips cuts down on car exhaust, keeping the air cleaner.
Olympiad Test Level 2: Earth and Environment - Question 7
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Which action helps stop global warming?
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Trees absorb carbon dioxide from the air, reducing the greenhouse gases that warm the planet.
Olympiad Test Level 2: Earth and Environment - Question 8
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Oil spills in the sea cause
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Oil in water coats fish and plants, making the sea unsafe for animals and humans.
Olympiad Test Level 2: Earth and Environment - Question 9
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Which R in the 5R rule means composting food scraps?
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“Rethink” here refers to letting organic waste rot or compost, turning scraps into soil for plants.
Olympiad Test Level 2: Earth and Environment - Question 10
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Which of these is a greenhouse gas that traps heat in Earth’s atmosphere?
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Methane, released by animal farming and waste, captures heat and adds to global warming.
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Olympiad Test Level 2: Earth and Environment MCQs with Answers

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