What is a wetland? A. an ecosystem in which half the area is wet and the other half is dry B. an ecosystem in which plant roots
are submerged during some part of the year C. an ecosystem with running water at least part of the year D. an ecosystem that is made up of salt water at least part of the year
Ions are atoms which have a missing electron or an extra one. This is what gives the ion its positive or negative electrical charge. Isotopes are atoms which contain a different number of neutrons.
