Which of these has an exoskeleton?
a. tree
b. deer
c. elephant
d. crab?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

How have the greenhouse gasses increased from the year 2000 to 2018