Asign that a country is becoming economically developed is a a) blending of different ethic groups. b) decrease in the exportation of goods. c) move toward an authoritarian government. d) move away from a dependence upon agriculture. hurry! 15 points! tysm!

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.