Top 20 Repeated Questions for CTET Paper 1 on EVS (Environmental Studies)

Environmental Studies (EVS) is an interdisciplinary subject that integrates concepts from science, social studies, and environmental education to help students understand the interconnectedness of the natural and human-made worlds. It covers a wide range of topics including family and friends, food, shelter, water, travel, our environment, plants and animals, human body and health, natural phenomena, social issues, historical development, government and administration, and basic scientific principles. EVS aims to foster awareness, knowledge, attitudes, and skills necessary to protect and improve the environment, encouraging sustainable living and responsible citizenship.

1. Top 15 Repeated Questions for CTET Paper 1 on EVS (Environmental Studies) What is the main source of energy for the water cycle? A) Wind B) Sun C) Moon D) Plants Answer: B) Sun Explanation: The sun provides the energy needed for evaporation, driving the water cycle. Which of the following is a biotic component of the environment? A) Water B) Soil C) Plants D) Air Answer: C) Plants Explanation: Biotic components include all living organisms, such as plants. What process do plants use to convert sunlight into chemical energy? A) Respiration B) Transpiration C) Photosynthesis D) Fermentation LetsCrackCTET

2. Answer: C) Photosynthesis Explanation: Photosynthesis is the process by which plants convert sunlight into chemical energy 4.Which gas is essential for the process of photosynthesis? A) Oxygen B) Carbon dioxide C) Nitrogen D) Hydrogen Answer: B) Carbon dioxide Explanation: Plants use carbon dioxide along with sunlight and water to perform photosynthesis. 5.Which of the following is a non-renewable resource? A) Solar energy B) Wind energy C) Coal D) Biomass Answer: C) Coal Explanation: Coal is a fossil fuel that cannot be replenished on a human timescale. 6.What is the term for animals that only eat plants? A) Carnivores B) Herbivores C) Omnivores D) Detritivores LetsCrackCTET

3. Answer: B) Herbivores Explanation: Herbivores are animals that primarily consume plant material. 7.Which of the following is an example of a waterborne disease? A) Influenza B) Cholera C) Tuberculosis D) Chickenpox Answer: B) Cholera Explanation: Cholera is caused by contaminated water. 8.Which layer of the Earth is made up of tectonic plates? A) Core B) Mantle C) Crust D) Atmosphere Answer: C) Crust Explanation: The Earth's crust is broken into tectonic plates. 9.What is the primary function of the roots of a plant? A) Photosynthesis B) Reproduction C) Absorption of water and nutrients D) Production of flowers LetsCrackCTET

4. Answer: C) Absorption of water and nutrients Explanation: Roots absorb water and nutrients from the soil. 10. Which of the following is a primary consumer in a food chain? A) Grass B) Deer C) Lion D) Eagle Answer: B) Deer Explanation: Primary consumers are herbivores that feed on producers (plants). 11.What is the major cause of acid rain? A) Carbon monoxide B) Sulfur dioxide and nitrogen oxides C) Methane D) Ozone Answer: B) Sulfur dioxide and nitrogen oxides Explanation: These gases react with water vapor to form acids. 12.Which part of the plant is responsible for making food? A) Roots B) Stem C) Leaves D) Flowers LetsCrackCTET

5. Answer: C) Leaves Explanation: Leaves contain chlorophyll, which aids in photosynthesis. 13.Which of the following is not a greenhouse gas? A) Carbon dioxide B) Methane C) Oxygen D) Nitrous oxide Answer: C) Oxygen Explanation: Oxygen does not trap heat in the atmosphere like greenhouse gases. 14. Which of the following is a method of soil conservation? A) Deforestation B) Overgrazing C) Crop rotation D) Urbanization Answer: C) Crop rotation Explanation: Crop rotation helps maintain soil fertility and reduces erosion. 15.Which of the following is the largest source of renewable energy in the world? A) Wind power B) Hydropower C) Solar power LetsCrackCTET

6. Geothermal power Answer: B) Hydropower Explanation: Hydropower is currently the largest source of renewable energy globally. LetsCrackCTET