Origin and Evolution of the Universe Answers

Which statements describe some of the original ideas proposed about the universe during the big bang? Check all that apply.The universe exploded.The universe was opaque.The universe was one second old.The universe was very hot and dense.The universe expanded from a single point.

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Inflation: [___]

123✔ 45

1234✔ 5

12✔ 345

1✔ 2345

Arcturus is a star whose surface temperature is 4290 K.

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A star is observed to have a temperature of 3000 K and a luminosity of 105.

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Identify the type of star that goes through these steps in their life cycles.

low-mass stars✔ high-mass starsboth low- and high-mass stars

✔ low-mass starshigh-mass starsboth low- and high-mass stars

✔ low-mass starshigh-mass starsboth low- and high-mass stars

low-mass starshigh-mass stars✔ both low- and high-mass stars

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Which were predictions based on the big bang theory? Select all that apply.leftover radiation exists from the big banglow-mass stars become white dwarfshigh-mass stars become neutron starshydrogen and helium exist in abundancethe universe is still expanding

A star is observed to have a temperature of 3000 K and a luminosity of 105.