Earth's Resources: Human Impact on Resources Exams

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Earth's Resources: Human Impact on Resources Which activities are ways to reduce the negative impacts humans have on Earth's resources? Select two options. Commercial fertilizers, which are ma... de by humans, are used to enrich soil for healthier crops. However, erosion may carry the fertilizer chemicals to the oceans. The presence of these chemicals may cause certain kinds of algae to reproduce rapidly. This decreases the amount of oxygen in the water, which can cause organisms that depend on it, like fish, to die. Which statements describe the impact of the use of fertilizers? Select two options. The best action humans can take to decrease the effect of harmful growth and reproduction of algae is to: Sand dunes protect beaches against erosion and flooding due to storms. Which human activity would have the most negative impact on dune grasses and the coast? Oil is a fossil fuel used to run cars, heat up homes, and produce electricity. Oil can be removed from the bottom of the ocean through drilling. Drilling machines dig deep down into the Earth. When oil is found, pipes carry it to the surface. Sometimes, accidents happen that cause the oil to spill into the oceans. The oil can not only kill marine organisms, but when it reaches the surface of the water, some chemicals evaporate, become part of the atmosphere, and pollute the air. Based on the passage, which resources and organisms are affected by oil spills? Select three options. [Show More]

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