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Amanda [17]
3 years ago
7

How did stars affect life on Earth in the past?

Biology
1 answer:
brilliants [131]3 years ago
4 0

Answer:

The reason why stars are so important is because they have helped humans navigate through Earth . When it was dark these stars would light up the sky giving people light . ... the most important is the Sun, because without that it wouldn't be life on Earth . Earth would just be a rock with ice.

Explanation:

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THERE IS MORE THAN ONE ANSWER
ehidna [41]

Answer:

the right answer for this question are:

A.level rising

C.extreme droughts

D.stronger hurricanes

7 0
3 years ago
Why does a euglena has a flagellum that allows it to move?
Artist 52 [7]
Euglena move from one place to another like an animal. When they manufacture their own food, they have to move to such an area where they can receive required amount of sunlight. There are two features on its body that facilitate in its movement. The most important is the flagellum, which is a long whip-like appendage attached to the body. It turns and twists in the water in order to push the body through the water. The other physical feature that plays a vital role in giving a sense of direction to its movement is the eyespot, also located at the anterior of its body. It is a light-sensitive, pigmented organelle which is capable of detecting sunlight. Thus, it orients the movement towards the direction of light, where they can collect sunlight required for making food.The ability to move plays a significant role in vital life processes of Euglena, such as the synthesis of food. Hope that helps ;)
5 0
3 years ago
Why must scientists use satellites to gather data on Uv radiation
Lostsunrise [7]

Answer:

because it would be dangerous to do it by hand or skin.

Explanation:

7 0
3 years ago
5) Explain in your own words, what each of the following are:
Ludmilka [50]

Answer:

a.)<u>fault</u>:A fault is a planar crack or discontinuity in a volume of rock over which rock-mass motions have caused considerable displacement.

b.)<u>focus</u>:The focus is on the location where an earthquake begins deep under the Earth's crust.

c.)<u>epicenter</u>:The epicenter of an earthquake is the point on the earth's surface that is vertically above the epicenter.

d.)<u>seismic waves</u>:Seismic waves are elastic waves that occur in the ground as a result of an earthquake or other natural occurrence.

Explanation:

Hope this helps!

Please mark me as Brainlinieast.

5 0
3 years ago
Fossils up to 75,000 years old can be dated with ______.
kodGreya [7K]
Fossils up to 75,000 years old can be dated with Carbon-14.
 
Radio isotopes can be used for the age determination of the fossils. Carbon-14 is a common isotope which is used for that purpose. But the half- life of the Carbon-14 is relatively small as 5730 years. That means the amount of Carbon-14 will be half after every 5730 years. Hence, decay is very fast. So Carbon-14 cannot be used forage determination which is more than 75000 years due to the low accuracy.
7 0
3 years ago
Read 2 more answers
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