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Impacts of Human Activities on Earth's Resources (Grade 5)

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Impacts of Human Activities on Earth's Resources

Towns and cities often are established and grow where resources can be found.
  1. True
  2. False
When humans move into an environment, what is a major impact of their presence?
  1. habitat destruction
  2. changes in the climate
  3. more homes for animals
  4. more room for plants to grow
Over the past 100 years, which of the following has been most impacted by human activity?
  1. movement of tectonic plates
  2. atmospheric composition
  3. number of tsunamis
  4. volcanic activity
Which is an example of a human impact on the atmosphere?
  1. burning fossil fuels
  2. mining for mineral ores
  3. building a dam for hydroelectric energy
  4. hunting an animal to extinction
Which is an advantage of using methane produced in landfills to generate energy?
  1. It prevents methane from entering the atmosphere.
  2. It prevents most forms of air pollution.
  3. It reduces the need for additional landfills.
Which is an advantage of using crop rotation over using fertilizers to add nutrients to the soil?
  1. The same crops can be planted every year.
  2. Soil nutrients are renewed naturally.
  3. Crop rotation uses less water.
Fertilizers flowing into a lake can cause the rapid growth of algae. How does the rapid growth of the algae affect the ecosystem of a lake?
  1. It attracts more birds and other wildlife to the lake.
  2. It prevents the loss of habitats for fish and other organisms.
  3. It causes a rapid increase in the population of fish in the lake.
  4. It causes a rapid increase in the population of plants in the lake.
Damage can result to nearby water ecosystems if factory pipes carrying                     leak into a stream.
  1. drinking water
  2. waste oxygen
  3. carbon dioxide
  4. poisonous chemicals
Where would you find a lake that is protected by law from any fishing?
  1. a farm field
  2. a private home
  3. a national park
  4. a recreation area
The Nashua River is located in Massachusetts and New Hampshire. In the 1960s it was one of the most polluted rivers in America. Paper mills and other industries had been dumping dyes and chemicals into the river for decades. Parts of the river were so polluted that only sludge worms could survive in it. Then, a local resident named Marion Stoddart took action and organized a cleanup of the Nashua River. Thanks to Soddart’s efforts, the first state and federal clean water acts were passed. These new laws helped support the long cleanup process. Today, the Nashua River is a thriving ecosystem widely used for recreation.

What is the main idea of the passage?
  1. Ecosystems change over time based on human activities and natural processes.
  2. Human activity has negatively impacted the environment and our natural resources.
  3. Animals cannot survive in rivers and waterways that have been polluted by human activities.
  4. Individuals and communities are doing things to help protect Earth’s resources and environments.
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