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Assessment Pollution

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Assessment Pollution Assign Print Assessment Print with Answers Assessment Pollution INSTRUCTIONS Check your understanding with this practice assessment. 1) Which of the following activities would be least harmful to an ocean environment? o A) A fisherman catching food for his family. o B) Oil is spilled into the water from a tanker ship. o C) Coral reef is removed and sold as souvenirs. o D) Trash is washed from beaches into the water. o Explanation:The answer is A. As long as enough fish are left to reproduce this resource is renewable and removing some would not affect the ocean environment. 2) What does it mean to reuse? o A) use something again o B) use less of something o C) save electricity o D) conserve water o Explanation:The correct answer is A. It is correct because by reusing items it cuts down on excess waste. 3) Which of the following might be a biotic factor in a stream ecosystem? o A) rocks o B) water o C) sunlight o D) pollution o Explanation:The correct answer is D. It is correct because human waste, which is a biotic factor, can cause pollution. 4) Humans have changed the Earth in ways that hurt themselves and other organisms by ________. o A) hunting o B) recycling o C) gardening o D) polluting the air, water, and land o Explanation:The correct answer is D. Human industrialization has polluted air, water, and land. 5) Energy conservation will result in ______. o A) more air pollution. o B) fewer available sources of energy. o C) more acid rain. o D) less air pollution. o Explanation:The correct answer is D. It is correct because energy conservation will result in the decrease of consumption of natural resources, including fuels, which are burned and produce pollution. 6) The picture below shows biotic and abiotic components of a marine ecosystem. Which component of the ecosystem is abiotic? o A) producers o B) decomposers o C) sunlight o D) consumers o Explanation:The correct response is C. It is correct because the sunlight is an abiotic component of the ecosystem. 7) Not all pollution is made by humans.Which product of a volcano is a form of pollution? o A) smoke and ash o B) magma o C) lava o D) steam o Explanation:The correct answer is A. It is correct because smoke and ash are a form of air pollution which can be deadly. 8) Overgrazing by cattle reduces the grass cover of a region. What will be the impact of this on the region? o A) Fertility of soil will decrease. o B) Temperature of the area will decrease. o C) Air quality of the region will increase. o D) The number of trees in the region will increase. o Explanation:The correct response is A. It is correct because overgrazing decreases the grass cover that helps bind soil. It increases the rate of soil erosion and decreases soil fertility. 9) Coal mining provides a source of energy for humans, at the same time it negatively affects earth's systems. Which of these is an effect of mining? o A) more radioactive waste o B) increased number of hurricanes o C) increased rate of soil erosion o D) greater chances of major earthquakes o Explanation:The correct response is C. It is correct because the process of mining loosens the soil and increases the rate of soil erosion. 10) Which of the following is not an abiotic component that is part of soil? o A) leaf litter o B) pebbles o C) sand o D) water o Explanation:The correct answer is A. Leaves were once living, so they are a biotic component in soil. 11) Which of the following is a change that humans make to the environment that is beneficial to other organisms? o A) clearcutting o B) managed reforestation o C) air and water pollution o D) use of pesticides o Explanation:The correct answer is B. Managed reforestation with native trees can replenish forests, soils, flora, and fauna. 12) The number of organisms an ecosystem can support depends on __________. o A) both biotic and abiotic factors. o B) only abiotic factors. o C) only biotic factors. o D) neither biotic nor abiotic factors. o Explanation:A is the correct answer. It is correct because the number of organisms an ecosystem can support depends on a variety of both biotic and abiotic factors, including food, predators, temperature, available nesting locations, available drinking water, etc. 13) Look at the picture below to answer the question. Which two components of the desert biome are biotic factors? o A) cactus and soil type o B) temperature and soil type o C) cactus and kangaroo rat o D) kangaroo rat and temperature o Explanation:The correct response is C. It is correct because the biotic components comprise of plants and animal in a region. 14) Choose the best answer. Water pollution damages drinking water supplies and poses health risks. All of the following are human health risks associated with water pollution EXCEPT: o A) spread of typhoid fever o B) outbreaks of cholera and diaherra o C) lead and mercury poisoning o D) increase in acid rain o Explanation:The correct answer is D. Acid rain is associated more with air pollution than water pollution. 15) Over the past 200 years, people have been cutting down forests all over the world at a very fast rate. This has added large amounts of carbon dioxide to our atmosphere. Part of the reason is that when trees are burned, they release carbon dioxide. Why else would cutting down trees increase the amount of carbon dioxide in the atmosphere? o A) Trees make carbon dioxide through photosynthesis. o B) Trees, like all plants, use up carbon dioxide. o C) Trees provide shelter for other living things that produce carbon dioxide. o D) Trees give shade, which cools Earth's surface. o Explanation:The correct answer is B. Like all other plants, trees use carbon dioxide during photosynthesis; if there are fewer trees, less carbon dioxide gets used up. 16) Julio has been studying biotic and abiotic factors in his science class and is looking for biotic factors as he walks down a busy street. He has observed all of the following things. Which of them is biotic? o A) the sound of the cars and busses o B) the candy wrapper on the ground o C) the people walking on the sidewalk o D) the pollution that is in the air o Explanation:The correct answer is C. It is correct because people are the only living factors listed. 17) Drug manufacturing companies make drugs for human use but release a lot of harmful chemicals. What consequence will these chemicals have on earth's ecosystems? o A) It will increase chances of floods. o B) It will increase rainfall in an area. o C) It will increase the occurrence of earthquakes. o D) It will increase contamination of land, air and water. o Explanation:The correct response is D. It is correct because harmful chemicals from drug manufacturing plants are released into land, water and air, thus polluting the earth’s ecosystems. 18) How can the burning of fossil fuels be a factor for global warming? o A) Burning fossil fuels heats the Earth from all of the flames. o B) Burning fossil fuels releases oxygen into the atmosphere which traps heat o C) Burning fossil fuels releases nitrogen into the air which traps heat. o D) Burning fossil fuels releases carbon dioxide into the air which traps heat. o Explanation:The correct answer is D. When fossil fuels are burned CO2 is released. CO2 is a greenhouse gas that traps heat. The increase of C02 in the atmosphere may be a cause of the average temperature increase in the last century. 19) Which of the following is an abiotic resource? o A) grasslands o B) animals o C) water o D) wood o Explanation:The correct answer is C. Living things need water, but water itself is not alive; abiotic resources are also called inorganic resources. 20) The two main types of pollutants that contribute to the world's pollution problem are _____________ and _________________. o A) terrestrial, extraterrestrial o B) organic, inorganic o C) biotic, abiotic o D) biodegradable, nondegradable o Explanation:The correct answer is D. This answer is correct because the two types of pollutants that contribute to the world’s pollution problem are biodegradable, pollutants that can be broken down by natural processes, and nonbiodegradable, pollutants that cannot be broken down by natural processes. 21) An example of an abiotic resource is _____________. o A) a tree o B) an animal o C) a rainforest o D) water o Explanation:The correct answer is D. The answer is correct because water is the only non-living resource out of the choices given. 22) Smog is a form of pollution that makes the ___________ harmful to living things. o A) water o B) soil o C) air o D) trees o Explanation:The answer is C. Smog is even more harmful when there are no winds to move it around and break it up. 23) Abiotic factors can be divided into three main categories: geologic, social, and ______. o A) astronomical o B) chemical o C) climatic o D) organic o Explanation:The correct answer is C. It is correct because a main category of abiotic factors is climate, which includes factors such as weather. 24) Air, light, and temperature are examples of ________ factors that make up an ecosystem.
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