Which of these is the most characteristic feature of a sedimentary rock?
a) stratification
b) crystallization
c) brightly colors
d) the presence of shells

Maria is going to a hiking trip this weekend. she has been busy shopping for the trip. which of these items that she bought are a want for her?

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?

Read the article titled "greening the globe." according to the section titled “the contention,” the debate over climate change has two basic camps of thought. identify these two camps and their beliefs. give examples of who supports each one and explain what evidence they use to support their arguments. based on these arguments, which way of thinking do you agree with and why?