Why are streak plates used to test minerals?

A. Small impurities can cause big changes in the color of a mineral.

B. Most minerals are not soluble in water.

C. The mineral reacts with a compound on the streak plate.

Gary lives in an area that receives high rainfall throughout the year. Which device would be useful to him to maintain his computer? A. CD-ROM B. UPS C. motherboard D. system unit fan E. scanner

A store sells widgets at 25 cents each for small orders or at 20 cents each for orders of 100 or more. Write a program that requests the number of widgets ordered and displays the total cost.

You must change ownership of a script called myscript so that only the user owner has read/write access to it and only the user owner and group owner have execute permissions. Which of the following commands would accomplish this? a.

What is the result of expression 15 > 10 > 5 in C? What is the result of the same expression in Java?

Given the definition of the function one_year_older:def one_year_older (name, age) : print ('Name:', name) age =

Brent sold 17/20 case of tennis balls on Monday and 7/10 case on Tuesday. how many more tennis balls dis he sell on Monday than on Tuesday

Cars entering our field of vision from the side require the use of

Which of the following are true statements about digital certificates in Web browsers? I. Digital certificates are used to verify the ownership of encrypted keys used in secured communicationII.

An Ethernet network, all data travels across the network and between computers in which form or unit?

Write a function called calculate () that accepts three integer Numbers as arguments, compute these values : Sum and Product and Return these computed results to the main program.