This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Environment > Anthropogenic Activities And Their Impacts On Environment – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Anthropogenic Activities And Their Impacts On Environment Quiz 5 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Many products are made from trees. Which is the BEST way to manage the use of trees? A) Reduce the amount of recycled paper. B) Cut down more trees. C) Build more lumber mills. D) Plant a tree each time one is cut down. Show Answer Correct Answer: D) Plant a tree each time one is cut down. 2. Why is biodiversity important? A) It removes mercury and other pollutants. B) It stops acid rain. C) It creates more fossil fuels. D) Biodiversity helps an ecosystem survive impacts such as natural disasters or human impact. Show Answer Correct Answer: D) Biodiversity helps an ecosystem survive impacts such as natural disasters or human impact. 3. Invasive species often ..... A) Have no impact on the availability of resources. B) Provide extra resource for native species. C) Compete with native species for resources. D) Help native species find resources. Show Answer Correct Answer: C) Compete with native species for resources. 4. What is one of the greatest threats to biodiversity on Earth? A) Pollution. B) Decrease in food supply. C) Habitat destruction. D) Loss of drinking water. Show Answer Correct Answer: C) Habitat destruction. 5. Which of the following is a finite resource? A) Fossil fuels. B) Trees. C) Solar energy. D) Wind energy. Show Answer Correct Answer: A) Fossil fuels. 6. What percentage of energy is passed on to each tropic level? A) 50%. B) 10%. C) 90%. D) 100%. Show Answer Correct Answer: B) 10%. 7. When deciding on new environmental policies and laws, which term is used to describe the comparison between benefits and costs of human activities? A) Industrialization. B) Trade-off. C) Climate change. D) Technology. Show Answer Correct Answer: B) Trade-off. 8. Scientist now consider human activities to be the major cause of global change. What do we call this "age of humans" ? A) Cenozoic. B) Pliocene. C) Anthropocene. D) Mesozoic. Show Answer Correct Answer: C) Anthropocene. 9. An increase in human population puts a stress on resources that can be renewed, such as A) Trees and coal. B) Water and gasoline. C) Oil and natural gas. D) Water and trees. Show Answer Correct Answer: D) Water and trees. 10. Approx. how many people are on this planet today? A) 6.6 million. B) 8.6 billion. C) 120 billion. D) None of these. Show Answer Correct Answer: D) None of these. 11. What are some consequences of deforestation? A) Increased population in cities. B) Building of more infrastructure. C) Soil erosion, loss of biodiversity, loss of ability to remove CO2. D) More mercury and cyanide released into rivers. Show Answer Correct Answer: C) Soil erosion, loss of biodiversity, loss of ability to remove CO2. 12. Scientists found that the topsoil of a riverbank had greatly eroded. After doing some research, they learned that the riverbank is flooded almost every year.What would be the bestway to preserve the topsoil? A) Put fences along the riverbank. B) Plant trees along the riverbank. C) Pave the riverbank with cement. D) Cover the riverbank with coal tar. Show Answer Correct Answer: B) Plant trees along the riverbank. 13. Rising CO2 levels has lead to a rise in average global temperatures. Based on this information, how is CO2 impacting the sea levels? A) Sea levels move in a cycle due to CO2 levels. B) Sea levels are not impacted by CO2. C) Sea levels rise as arctic ice melts. D) Sea levels lower as ice forms at the poles. Show Answer Correct Answer: C) Sea levels rise as arctic ice melts. 14. Pollution can cause harm to ..... A) Air only. B) Land only. C) Water only. D) All of these answers. Show Answer Correct Answer: D) All of these answers. 15. Humans often change ecosystems as a result of population growth, consumption, and technology. Which of the following exemplifies a way in which humans modify ecosystems? A) Factory and automotive emissions causing acid rain. B) Redirecting and storing freshwater behind dams. C) Cutting down trees to build new buildings and roads. D) All of these. Show Answer Correct Answer: D) All of these. 16. Which of the following is not a renewable resource? A) Solar energy. B) Coal. C) Wind energy. D) Water. Show Answer Correct Answer: B) Coal. 17. Which of the following is not a cause of acid rain? A) Electric cars. B) Combustion engins. C) Volcanic Eruptions. D) Burning of fossil fuels. Show Answer Correct Answer: A) Electric cars. 18. Recycling cannot help with which environmental problem? A) Soil pollution. B) Ozone depletion. C) Deforestation. D) Resource depletion. Show Answer Correct Answer: B) Ozone depletion. 19. A new species that causes harm to an ecosystem. A) Global Warming. B) Deforestation. C) Invasive Species. D) Pollutant. Show Answer Correct Answer: C) Invasive Species. 20. What is included in the calculation of your ecological footprint A) Production of food, energy and other things consumed. B) Waste produced. C) Space required for housing, transportation, and sporting activities. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. The oceans can provide a large supply of our food. What would be the best decision to provide abundant marine food resources for the future? A) Fishing should be regulated by law. B) There should be no restrictions on fishing. C) Only one country at a time should be allowed to fish. D) None of above. Show Answer Correct Answer: A) Fishing should be regulated by law. 22. In lakes that are exposed to acid rain, fish populations are declining. This is primarily due to changes in which lake condition? A) Temperature. B) Size. C) Location. D) PH. Show Answer Correct Answer: D) PH. 23. Pollution resulting from the use of fertilizers and the disposal of sewage from humans and livestock can lead to an algal bloom. The effects of these pollutants on algae growth can be intensified as a result of which of the following? A) The decreased use of solar power. B) An increase in freshwater runoff. C) An increase in organic farming practices. D) None of above. Show Answer Correct Answer: B) An increase in freshwater runoff. 24. Which of these produces most of the compounds responsible for causing acid rain? A) Wind mills. B) Nuclear fission. C) Fossil fuels. D) Solar cells. Show Answer Correct Answer: C) Fossil fuels. 25. Coal, oil and gas are examples of A) Shell Fuels. B) Fossil fuels. C) Bone fuels. D) Sea fulels. Show Answer Correct Answer: B) Fossil fuels. 26. Which of the following items does not create air pollution? A) Bus. B) Bicycle. C) Car. D) Motorcycle. Show Answer Correct Answer: B) Bicycle. 27. Soil erosion, or the wearing away of surface soils, along with dry climates, over farming, over grazing, and drought can lead to what event? A) Desertification. B) Deforestation. C) Habitat Fragmentation. D) None of these. Show Answer Correct Answer: A) Desertification. 28. What is the PH Scale used for? A) To measure the Acidity or Alkalinity of a solution. B) To measure acids only. C) To measure bases only. D) None of above. Show Answer Correct Answer: A) To measure the Acidity or Alkalinity of a solution. 29. The ozone layer protects Earth by absorbing- A) Ultraviolet radiation. B) Carbon dioxide. C) Cosmic dust. D) Solar heat. Show Answer Correct Answer: A) Ultraviolet radiation. 30. The ..... the water in our oceans, the ..... CO$_{2}$ it can absorb. A) Warmer, less. B) Warmer, more. C) Cooler, less. D) None of above. Show Answer Correct Answer: A) Warmer, less. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesAnthropogenic Activities And Their Impacts On Environment Quiz 1Anthropogenic Activities And Their Impacts On Environment Quiz 2Anthropogenic Activities And Their Impacts On Environment Quiz 3Anthropogenic Activities And Their Impacts On Environment Quiz 4Anthropogenic Activities And Their Impacts On Environment Quiz 6Anthropogenic Activities And Their Impacts On Environment Quiz 7Anthropogenic Activities And Their Impacts On Environment Quiz 8Anthropogenic Activities And Their Impacts On Environment Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books