Which one of the following statements concerning the standard cosmological model

Question

Which one of the following statements concerning the standard cosmological model is false?


a.
About 0.5 million years after the Big Bang, hydrogen and helium atoms began to form.

b.
The first distinguishable particles in existence after the Big Bang were quarks and leptons.

c.
Shortly after the Big Bang, all of the fundamental forces behaved as a single force.

d.
The Grand Unified Theory describes the universe immediately before and shortly after the Big Bang.

e.
At 10–43 s after the Big Bang, the gravitational force was distinguishable from the other fundamental forces.

Explanation / Answer

there is no theory right now that applies to times before the big bang.

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