A scientist wants to look at the different ages of the ocean's surface. What kind of map should he use? Topographic map
Plate tectonic map
Isochron map
Geographic map

Topography map ~ i wish you well on your assessment - JyMarkus

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass

Where is the picture at