The diagram below shows a helium atom. The particles labeled A are called (2 points)

Which statement best explains why the Big Bang Theory is the leading scientific explanation of the development of the universe over time? (3 points)

The picture below shows a person exploring an underwater cave in Florida. The underwater cave was most likely formed because of (3 points)

A typical American household uses 150,000 gallons of water per year. A newspaper report says that about 0.3 gallons of water are used by an American household every minute. Which of these statements is correct about the information provided by the newspaper? (3 points)

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)