Which of the following does not describe a measurement standard? group of answer choices measurement standards avoid ambiguity. a standard need not agree with a previously defined size. confusion is eliminated when the correct measurement is applied. measurement standards must be unchanging.

Why did southern business leaders want to increase the number of slaves

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains