Answer:
The subatomic particle that carries the electromagnetic force and is the quantum of electromagnetic radiation. The photon has a rest mass of zero, but has measurable momentum, exhibits deflection by a gravitational field, and can exert a force.
Explanation:
Ocean Surface Topography. Orbiting spacecrafts make highly accurate measurements of the height of the ocean surface - commonly called 'sea level' - to gather long-term information about the world's ocean and its currents. ... The geoid is the shape the sea surface would have if all the currents and tides stopped.
They are two different patterns
