Which of these pieces of evidence supported alfred wregener's original theory of continential drift a. a seafloor that was geologically active with earthquake, volcanoes and mountain chains. b. evidence of ancient tropical swamps in cold regions of north america. c. sea floor spreading at mid-ocean ridges. do not answer if you do not know it. and hurry up.

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

Word equation for k(s) +h2o(l) yield koh (aq) + h2

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.