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  1. How did astronomers confirm the existence of dark ENERGY?
Aby calculating it using Kepler’s third law
Bby measuring the mass of galaxies
Cby detecting it with telescopes
Dby the ages of globular clusters

  1. How did astronomers confirm the existence of dark MATTER?
Aby measuring how fast the universe is expanding
Bby detecting very hot gas in galaxy clusters that emits X-rays
Cby measuring the amount of compressed gas in the universe
Dby detecting electromagnetic radiation reflecting from the dark matter

Verified Answer :

syed514

By the ages of globular clusters astronomers confirm the existence of dark ENERGY.

By detecting very hot gas in galaxy clusters that emits X-rays astronomers confirm the existence of dark MATTER.

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Answer:

1. d

2. b

Explanation:

Dark energy is defined as the unknown energy that has an immense impact on the universe. It was first observed from a supernovae measurements, which showed evidence that the universe's expansion was accelerating.

Dark matter makes up approximately 85% of the universe's matter, it is defined as a invisible component that interacts with visible matter through gravity.