Final answer:
The extremely high temperatures in the universe shortly after the Big Bang decreased the collision of photons and atoms, decreased the temperature of the radiation in the universe, and increased the likelihood of hydrogen forming.
Step-by-step explanation:
The extremely high temperatures in the universe shortly after the Big Bang had several effects:
- Decreased the collision of photons and atoms: As the temperature decreased, the collisions between photons and atoms became less frequent. This allowed photons to travel more freely.
- Decreased the temperature of the radiation in the universe: The high temperatures gradually decreased, causing the radiation in the universe to cool down.
- Increased the likelihood of hydrogen forming: The lowered temperatures allowed electrons and protons to combine and form stable hydrogen atoms.