In order to keep an automobile operating, it is necessary to keep adding fuel as it is used up. What kind of system is the car? Explain why this doesn't go against the Law of Conservation of Energy. *

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

The ammonia molecule in the diagram has the observed bond orientation because