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charle [14.2K]
3 years ago
10

What do astronomers use to calculate the age of the universe? Select three options.

Chemistry
1 answer:
sasho [114]3 years ago
7 0

The answers are

The age of the oldest stars

How fast distant galaxies are moving away from us

Patterns of background radiation.

Explanation:

The Astronomers calculate the age of the universe by looking for oldest stars, and by measuring the rate of expansion of the universe and back to big bang.

The Astronomers used the techniques like the age of oldest stars, how fast the distant galaxies are moving away from us, patterns of background radiation and along with the Big Bang as reference point, they estimate that the universe may be approximately 12 billion years old.

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solmaris [256]

246 g KMnO4

Mass = 38.5 g water × (6.38 g KMnO4/100 g water) = 246 g KMnO4

3 0
4 years ago
Calculate the mass percent of titanium in the mineral ilmenite, FeTiO3. What mass of ilmenite (in grams) is required if you wish
muminat
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3 years ago
The arrows in the chart below represent phase transitions.
Lana71 [14]

Answer:

a. 1,2,and 3.

Explanation:

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3 years ago
Which of these equations is balanced, and which is not balanced? Explain how you can tell.
disa [49]

Answer:

a is balanced

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5 0
3 years ago
What manmade changes to the environment potentially increase the impact of this hazard?
storchak [24]

Answer:

natural disasters

Explanation:

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Hurricane.

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these are some examples, hope this helps :)

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