What could be a possible explanation why tectonic plates do not all move in the same direction?
a. the magma moves the plates in the same direction, but slab pull makes them move away from one another.
b. the magma moves in the same circular path, but the plates bounce against each other and change direction.
c. the magma moves in “cells,” which circulate in different directions, moving the plates in more than one direction.
d. the magma’s movement in the mantle is highly erratic and causes the plates to move in circles.

C) the magma moves in cells which circulate in different directions, moving the plates in more than one direction.

a sequence is a function whose domain is the set of natural numbers.

natural numbers are all the negative and positive integers

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: