The original body of a fossil is sometimes preserved in: A) ice
B) mud
C) water
D) sand
** please help lol

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."