19. Two unknown mineral samples are different colors there are other properties are the same what does this tell you? ags general science chapter 10 minerals and rocks review book

my class - it put in geography but I take environmental science in 11 grade

The larges lakes in the world are found in: asia europe north america south america

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?

Which of the following is an environmental cost of agriculture? a. agronomyb. cash cropsc. pollutiond. crop rotation