Which of the following is the rarest and most valuable mineral ore among the native elements?

A. gold

B. silver

C. copper

D. platinum

What's the difference between impact and non-impact printers?

Two technicians are discussing the possible cause of hydraulically shifter automatic transmission/transaxle shifting at too high a speed. Technician A says that a defective vacuum modulator (if equipped) could be the cause.

Aquatic animals have different levels of tolerance to pH scale changes in water. For example a wood frog will die if the pH of water falls below 4while a clam will die if the pH of water falls below 6 what can you conclude about the acidity of water

On Scratch 1, how do you make the character jump?

A tool that is used to search for and gather data from a page on the internet is called a?

Which custom configuration is most likely to include a raid array?

Which describes an operating system this is multitasking

With consideration to Ethernet, why is it necessary to have a common language for communication across devices.

In Windows Vista, the Run command can be found in which application?

Data for which there is temporarily no room in RAM is diverted to where on your computer? A. The paging file on the hard drive B. The system file on the hard drive C. The memory file on the hard drive D. The CPU cache