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Free Exam: nature of science test e

Number of Questions in Test: 14
Number of Questions in Preview: 5
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Question 1

Based on available data, most astronomers accept the Big Bang theory of the origin of the universe. Because this event cannot be observed, scientists rely on a variety of instruments to learn more about what may have happened. Particle accelerator technology increases understanding of the Big Bang by allowing scientists to ____.

Type: Multiple choice
Points: 1
Randomize answers: No

Question 2

Scientists in recent years have become concerned about a global warming trend which is underway. While there is debate about the cause, many scientists believe increased carbon dioxide (CO2) production resulting from human activities is a primary culprit. How has concern within the scientific community translated into behavioral changes or actions taken by others in the world community?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 3

In the early to mid-1900s, people living in the path of severe weather, including severe thunderstorms, tornadoes, winter weather, and hurricanes, often had little to no warning of an approaching storm. Which of the following statements related to this fact is false?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 4

Increasingly, U.S. citizens have become aware of the need to use natural resources wisely. Scientists have played an important role in communicating this fact to the public. Which of these positive responses from the American public has occurred as a result of education about resource conservation?

Type: Multiple choice
Points: 1
Randomize answers: No

Question 5

Scientific findings concerning heart disease are of great public interest, as many people are affected by or are interested in prevention of this disease. Scientists have played an important role in communicating information about how to prevent this disease by making the public aware that ____.

Type: Multiple choice
Points: 1
Randomize answers: No

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