The rivers found in North America have always been an important natural resource for its human population. Historically, cities have always been located near major bodies of water because on water is more efficient than going over land. A. transportation

B. irrigation

C. recreation

D. life

What are the four basic classes of organic molecules how do they differ structurally and functionally

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

What was darwins theory of common decent