Which statement is true about the earth’s oceans?
a.
they are all getting larger due to the movement of tectonic plates.
b.
they have changed over time.
c.
they have not changed in 4 billion years.
d.
they are all getting smaller due to the movement of tectonic plates.

answer; (phospholipid);

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.