Which of these statements best explains why scientists use models? (3 points)

“One drop of water leaking per second from a faucet can waste more than 2,300 gallons of water per year.” The most reliable source of this information is a (3 points)

Which of the following best describes the transfer of fecal coliform and an impact on the environment? (3 points)

The heating of groundwater forms (3 points)

The pond waters in a location in Florida had an unusual taste and smell. Investigations revealed that storm water runoffs had carried huge amounts of animal wastes into the pond waters. What are people in the location most likely to do to prevent the water pollution? (3 points)

The picture below shows Lake Jackson in Florida. Lake Jackson has disappeared and reappeared about four times since 1907. Which of these most likely caused Lake Jackson to disappear and reappear? (3 points)

Manure is carried by rain water from land to a river. This is an example of (3 points)

Which of these pictures best shows a watershed model? (3 points)

Two groups of scientists got different results while studying about the expansion of the universe. What do the two results most likely indicate? (3 points)

The radiations detected by Arno Penzias and Robert Wilson were the (3 points)