Dr. Wallis has designed a test to measure eleventh-graders' knowledge of American history. To ensure that the test represents American eleventh-graders, she is standardizing the test by:

Lava and other matierls luanced from a volcano and into the air are referenced as

Brainliest to who answers! what is the function of a purchasing cooperative, or co-op?

Why do you think that historians use the word “revolution” to describe important changes in agriculture? how did the green revolution and other agricultural revolutions change the lives of billions of people? < < read less