Which layer in the model of Earth could be described as similar to oozing peanut butter moving slowly towards the surface when hot and falling back slowly towards the inner core when cool? Select one: a. The upper mantle b. The lower mantle c. The crust d. The lithosphere

is this a psat question, if so do not cheat try your best.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.