Which explanation is least likely to be evidence for geological processes changing Earth's surface? Select one:
a. The rock cycle transforms rocks from one type to another.
b. The tectonic plates uplift the rocky crust of Earth to form mountains.
c. Weathering and erosion break down rock and carry sediments to new locations.
d. Pollution runoff contaminates a lake.

Distance that the transcontinental railroad covered from omaha to san francisco.

Which of the following is an example of a policy that may be implemented by a business that has trouble with employees using the internet for their own personal needs? a. all employees will have to take a safety training class. b. employees caught using the internet for personal needs will have to take a professional development class. c. personal interviews will be conducted to find out who is using the internet for personal needs. d. employees will be monitored, but nothing will happen if their employer catches them using the internet for personal needs.

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory