A) Polaris is much farther from Earth than the Sun -is the reason why Polaris although about 46 times larger than the Sun, the Sun appears brighter than Polaris from Earth.
Explanation:
Astronomers define the brightness of a star based on its apparent magnitude and absolute magnitude. The apparent magnitude tells about how bright does a star looks from the Earth. The absolute magnitude of star is its brightness or magnitude at a standard distance of 10 parsecs or 32.6 light-years.
Accordingly,
The apparent magnitude of Sun is 26.74; while that of Polaris is 2.02
The absolute magnitude of Sun is 4.63; while that of Polaris is 3.6
The Sun is at a distance of 0.000015649 light years from the Earth; while the Polaris is 434 light years from the Earth. A star appears brighter from the Earth due to the closeness of the star to the Earth.
All these factors make the Sun appear brighter than the Polaris
.
Answer:
If the newly formed metamorphic rock continues to heat, it can eventually melt and become molten (magma). When the molten rock cools it forms an igneous rock. ... Metamorphic rock can change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals
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The solution that is used as a preservative for a blood sample is a solution of 0.1 mg sodium citrate plus 0.1 mg mercuric chloride. Option A
<h3>How is blood preserved?</h3>
Many times, it is important to transport a blood sample from one point to another. In such cases, it becomes important to add a preservative to the blood sample so that it does not coagulate.
The solution that is used as a preservative for a blood sample is a solution of 0.1 mg sodium citrate plus 0.1 mg mercuric chloride. Option A
Learn more about preservative for blood sample:brainly.com/question/13739588
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Answer:
The focus is on getting a shot
Explanation:
There are 5 stages in the development of hunters. They are:
1. Shooting stage
2. Method Stage
3. Limiting out stage
4. Trophy stage
5. Sportsman stage.
In the shooting stage, the hunter is very excited and over eager to get a shot, any shot and usually shoots at the first animal that avails itself.
This keenness can lead to the hunter making bad decisions like endangering others with his shot, injuring the animal instead of killing it or selecting and shooting at the wrong animal.
Answer:
Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up. Hope this helps :)
Explanation: