According to the big bang theory, which describes the universe before the actual big bang occurred? multiple, cold, dense points, each larger than the sun multiple, hot, dense points, each smaller than an atom single, cold, dense point larger than the sun single, hot, dense point smaller than an atom

The Big Bang theory is a theory developed in 1927, from an astronomer named Georges Lemaître. It is a theory about how the universe began.

According to the big bang theory, the following describes the universe before the actual big bang occurred: single, hot, dense point smaller than an atom.

The theory states that the universe started as just a single point and the universe stretched and expanded to get as big as it is now, and that it could keep on stretching.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.