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Over [174]
3 years ago
8

Which are types of star systems?

Biology
2 answers:
sladkih [1.3K]3 years ago
7 0

Answer:

binary stars

Explanation:

Anarel [89]3 years ago
5 0

Answer:

- binary stars

Explanation:

A binary star is a star system. It is composed of its stars that orbit the same center of mass, that is, orbit around each other.

If two stars orbit each other, but maintaining a great distance from each other, they evolve independently and are called a separate pair. If they are close enough for matter to transfer between them due to tidal forces, they are called close pair or contact.

Binary stars obey Kepler's Laws of Planetary Motion, which are three:

  • 1st law (law of orbits): Each star moves along an elliptical orbit, with the center of mass of the system at one of the foci of this ellipse.
  • 2nd law (law of areas): the line connecting one star to another scans equal areas at equal time intervals.
  • 3rd law (harmonic law): The square of the orbital period of the stars is proportional to the cube of their average distance to each other.
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Match the type of water with the location in which it is found. surface water ,water vapor, atmosphere, well ,glacier ,river, gr
musickatia [10]

Answer:

Surface water <---> river

Ground water <------> well

Water vapour <------> atmosphere

Glacier <-------> ice

Explanation:

8 0
3 years ago
If you want to see something in fine detail, you should focus the light on which part of your retina?
Dmitry_Shevchenko [17]

If you want to see something in fine detail, you should focus the light the cornea. The lens works together with the cornea to focus light correctly on retina.

When light hit on retina special cells called photo receptors turn the light into electrical signals. The lens are the clear part of eyes behind the iris that help to focus light and image on retina to see something clearly.Lens is the important part of eye when it comes to focusing light so that we can see perfect clear image.

The retina is the most sensitive part which can effect by more light because retina convert incoming light into electrical impulse.

To learn more about Retina here

brainly.com/question/13993307

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4 0
2 years ago
State one action that humans could take to slow down<br>rate of global warming.​
il63 [147K]

Answer:

riding the bike instead of the Car

4 0
3 years ago
In the theory of plate tectonics, how should you picture the earth?
lorasvet [3.4K]

Answer:

C

Explanation:

As shown in the picture I attached to my answer, we can see all of the tectonic plates, which make up the lithosphere. The pieces do move very slightly every year.

5 0
1 year ago
Which of the following describes the embryonic period
dangina [55]

There should be options for this question. I manged to find them elsewhere. They are:

A) the period during which tremendous growth occurs and the organs continue to develop and become  functional

B) the period during which the umbilical cord develops

C) the period during which the major organs and structures of the organism first develop

D) the period during which the zygote moves down to the uterus and begins to implant in the lining

The correct answer is C. The embryonic period is the period during which the major organs and structures of the organism first develop. The embryonic period lasts from implantation of the egg in the uterus until about 8 weeks from the time of conception. It is the second major stage of prenatal development, prior to embryonic is the germinal stage and lastly is the fetal stage.

8 0
3 years ago
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