A base H+ ions from a solution. After a base dissolves in water, the solution has a low H+ concentration. A: Removes
B: Adds
C: Neutralize

What is thought to have caused the mass extinction at the end of the cretaceous period?

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent