Isotopes are atoms of the same element that have different O principal chemical properties, masses. O numbers of protons, O numbers of electrons.​

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b.colder climates near the equator c.large waves on the cost of europe d.warm climates in northern europe

Heat is the total potential energy of a substance that can be transferred. true false

Which is an example of a reversible physical change?