Which of the following would most likely happen if water did not form hydrogen bonds? a. water would exist only as a solid b. water would be able to dissolve all ionic compounds. c. water would not expand when it freezes. d. water would not exist on earth

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit