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spayn [35]
3 years ago
13

The observational fact about a cepheid variable star that leads to a measurement of its distance from earth is that its period o

f variation is directly related to its
Geography
1 answer:
OleMash [197]3 years ago
3 0

Answer:

absolute brightness

Explanation:

The observational fact about a cepheid variable star that leads to a measurement of its distance from earth is that its period of variation is directly related to its absolute brightness

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Firlakuza [10]
In anthropology and geography, a culture region, culture sphere, culture area or culture area refers to a geographical area with one relatively homogeneous human activity or complex of activity (Culture). Answer A is the most likely answer.
6 0
3 years ago
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Galileo was the first scientist to use the telescope to study the nighttime sky. Among his discoveries were the phases of Venus
Bumek [7]

Answer and Explanation:

At the time when Galileo lived, people believed in the geocentric model of the solar system, which claimed that earth was the center of the universe, where all the celestial bodies revolved around it. By using the microscope and discovering Jupiter's natural satellites, Galileo put geocentric systems to the test. This is because he showed that the earth was not the only planet that had celestial bodies rotating around it, other planets had this capacity, like Jupiter. Today we know that Galileo is correct, but his ideas were not well received at the time.

In relation to astronomy, the science of Galileo's time was based on the Aristotelian model, which stated that the celestial bodies were smooth and had a perfect, polished surface with no irregularities. Galileo also put this concept to the test, when he was able to visualize the surface of the moon with his telescope. He saw that the moon did not have a smooth surface, but a rough one, full of irregularities, mountains and caves just like the earth. Today we know that this is true, but one more this idea was not well received by the fellow citizens of Galileo, which caused his life imprisonment for heresy.

We can see that Galileo did not receive a correct judgment from the society in which he lived and suffered for it, even though he was not doing any harm to anyone.

3 0
3 years ago
BRAINLIEST TO FIRST CORRECT
kramer

Answer: They are younger than the Appalachian mountains

They are taller than the Appalachian mountains

Explanation:

The Appalachian mountains highest peak is about 6,684 feet while the Rocky mountains highest peak is 14,440 feet

The Appalachian mountains are 480 million years old while the Rocky mountains are only about 300 million years old

7 0
3 years ago
The set of countries with the greatest population densities are . A. England, France, Spain . . B. France, Italy, Spain . . C. G
Semmy [17]
Hello there. :)

<span>The set of countries with the greatest population densities are

</span><span>Germany, Italy, England</span>
3 0
3 years ago
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The horse was first domesticated in Europe and Asia about?
Vinil7 [7]

Answer:

5,550

Explanation:

it was 3500 BCE.

which is 5,500 years ago.

3 0
3 years ago
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