Which geologic period lasted for almost 7/8 of earth’s history?
a.
the precambrian time
b.
the quaternary period
c.
the carboniferous period
d.
the phanerozoic eon

Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?

Explain what role the narrator believes he is playing in telling the story. describe how this belief will affect the story. your answer should be at least 250 words.