This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Bagaimana logam berat dapat mempengaruhi kesehatan manusia? A) Logam berat meningkatkan fungsi kekebalan. B) Logam berat adalah nutrisi penting bagi tubuh. C) Logam berat tidak memiliki dampak pada kesehatan. D) Logam berat dapat menyebabkan gangguan neurologis, kerusakan ginjal, dan meningkatkan risiko kanker. Show Answer Correct Answer: D) Logam berat dapat menyebabkan gangguan neurologis, kerusakan ginjal, dan meningkatkan risiko kanker. 2. A substance you need to grow and live is called a A) Balanced diet. B) Nutrient. C) Calorie. D) Myplate. Show Answer Correct Answer: B) Nutrient. 3. What measures can be taken to reduce acid rain? A) Promote the use of plastic products. B) Reduce emissions of SO2 and NOx, promote renewable energy, and enforce stricter regulations. C) Increase use of fossil fuels. D) Ignore industrial emissions. Show Answer Correct Answer: B) Reduce emissions of SO2 and NOx, promote renewable energy, and enforce stricter regulations. 4. Which of these greenhouse gases is a man-made industrial chemical? A) Methane. B) Nitrous oxide. C) Chloroflurocarbons. D) Carbon dioxide. Show Answer Correct Answer: C) Chloroflurocarbons. 5. What two elements do all organic compounds have in common? A) Carbon and oxygen. B) Carbon and hydrogen. C) Carbon and nitrogen. D) Carbon and sulphur. Show Answer Correct Answer: B) Carbon and hydrogen. 6. Which of the following conclusions is supported by the results of the experiment? A) Nitrogen promotes leaf growth, and potassium promotes flower growth. B) Nitrogen promotes leaf growth, and potassium promotes root growth. C) Nitrogen promotes root growth, and phosphorous promotes flower growth. D) Nitrogen promotes root growth, and phosphorous promotes leaf growth. Show Answer Correct Answer: D) Nitrogen promotes root growth, and phosphorous promotes leaf growth. 7. Which atmospheric layer is closest to Earth's surface? A) Stratosphere. B) Troposphere. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: B) Troposphere. 8. What is the pH of acid rain? A) Above 7. B) Exactly 7. C) Less than 5.6. D) More than 10. Show Answer Correct Answer: C) Less than 5.6. 9. A substance that is neither a acid or a base has a pH of ..... A) 6. B) 7. C) 8. D) 9. Show Answer Correct Answer: B) 7. 10. In which layer of the atmosphere does weather occur? A) Troposphere. B) Stratosphere. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: A) Troposphere. 11. What strategies can be implemented to protect endangered species? A) Increase hunting quotas for wildlife. B) Promote urban development in natural habitats. C) Implement habitat conservation, legal protection, breeding programs, public education, and ecosystem restoration. D) Limit public access to national parks. Show Answer Correct Answer: C) Implement habitat conservation, legal protection, breeding programs, public education, and ecosystem restoration. 12. Presents of pollution intolerant indicator species will A) Clean up the water. B) Pollute the water. C) Let us know the quality is good. D) Let us know the quality is bad. Show Answer Correct Answer: C) Let us know the quality is good. 13. What are pollutants? A) Useful gases in the air. B) Substances harmful to the environment. C) Essential components of the atmosphere. D) Gases required for respiration. Show Answer Correct Answer: B) Substances harmful to the environment. 14. How does acid rain affect the chemistry of lakes and rivers? A) Acid rain decreases the pH of lakes and rivers, harming aquatic ecosystems and altering chemical balances. B) Acid rain enhances nutrient levels in lakes and rivers, benefiting ecosystems. C) Acid rain has no effect on the chemical composition of water bodies. D) Acid rain increases the pH of lakes and rivers, promoting aquatic life. Show Answer Correct Answer: A) Acid rain decreases the pH of lakes and rivers, harming aquatic ecosystems and altering chemical balances. 15. Which organism is responsible for decaying dead algae in water bodies? A) Fish. B) Bacteria. C) Fungi. D) Insects. Show Answer Correct Answer: B) Bacteria. 16. What is "sour" gas? A) Natural gas with a high oxygen content. B) Natural gas that contains hydrogen sulfide. C) Natural gas that is odorless. D) Natural gas that is used in fertilizers. Show Answer Correct Answer: B) Natural gas that contains hydrogen sulfide. 17. The number of mayflies decreases as the habitat quality of a stream declines.The study of the number of mayflies can be useful to scientists for A) Chemical monitoring. B) Biological monitoring. C) Estimating the concentration of lipids in the tissues of a particular species. D) Estimating the concentration of toxins in the tissues of a particular species. Show Answer Correct Answer: B) Biological monitoring. 18. Which statement best describes diffusion? A) The passive movement of molecules from an area of higher concentration to an area of lower concentration. B) The use of energy by plants to move nutrients into roots against a gradient. C) The movement of water across a semi-permeable membrane from low to high water concentration. D) The chemical breakdown of compounds due to reaction with water. Show Answer Correct Answer: A) The passive movement of molecules from an area of higher concentration to an area of lower concentration. 19. Which process describes the breakdown of chemicals by sunlight? A) Biodegradation. B) Phytoremediation. C) Photolysis. D) Dispersion. Show Answer Correct Answer: C) Photolysis. 20. Minamata disease is caused by A) Arsenic poisoning. B) Mercury poisoning. C) Cadmium poisoning. D) None of the above. Show Answer Correct Answer: B) Mercury poisoning. 21. Identify the CORRECT statements about dissolved oxygen (DO) in water I. At low pressure, the change of DO solubility with temperature decreases II. At higher dissolved salt content, DO becomes more soluble III. At higher temperature, DO becomes more volatile IV. At higher temperature, the change of DO solubility with pressure increases A) I, II. B) I, III. C) II, IV. D) III, IV. Show Answer Correct Answer: B) I, III. 22. Apa pentingnya oksigen terlarut dalam badan air? A) Tingkat oksigen terlarut tidak relevan dengan suhu air. B) Oksigen terlarut penting karena mendukung kehidupan akuatik dan menunjukkan kualitas air. C) Oksigen terlarut berbahaya bagi populasi ikan. D) Oksigen terlarut hanya mempengaruhi pertumbuhan tanaman di tanah. Show Answer Correct Answer: B) Oksigen terlarut penting karena mendukung kehidupan akuatik dan menunjukkan kualitas air. 23. The chemicals that are most likely responsible for increases in algae growth in lakes are A) Oxygen and carbon dioxide. B) Nitrates and carbon dioxide. C) Oxygen and phosphates. D) Nitrates and phosphates. Show Answer Correct Answer: D) Nitrates and phosphates. 24. Some organisms live on unusual substrates. Which example illustrates this adaptation? A) Algae on red snow thriving in extreme conditions. B) Plants using energy to move nutrients into roots. C) Bacteria converting nitrogen gas into nitrates. D) Animals ingesting food through hydrolysis. Show Answer Correct Answer: A) Algae on red snow thriving in extreme conditions. 25. We need to get vitamins from food and/or supplements because: A) Our body cannot produce all vitamins on its own. B) They are not available in any other form. C) They are harmful if not taken from food. D) They are only found in processed foods. Show Answer Correct Answer: A) Our body cannot produce all vitamins on its own. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 1Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 2Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 3Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 4Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 5Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 6Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 7Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 8Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 9Class 11 Chemistry (Part Ii) Chapter 14 Environmental Chemistry Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books