1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aniked [119]
3 years ago
6

Nearby stellar neighbors include the Alpha Centauri group and the Sirius star systems. Whereas light from our sun takes a little

over 8 minutes to reach the Earth, light from these stars can get to Earth in?
Biology
1 answer:
goldenfox [79]3 years ago
3 0

Answer:

The light from Alpha Centauri system takes 4.37 light-years and  Sirius star system takes 8.6 light-years to reach the Earth.

Explanation:

Light from millions of stars in more distant galaxies takes a long time to reach the Earth. Light travels at a speed of 300,000 kilometers per second. The time taken for light from these stars to reach the Earth is the distance to the star divided by the speed of the light. The distance traveled by light in one year is known as a light year and the distance to the stars that are farther away is expressed in light years.

The Sun is the closest star to the Earth and the sunlight takes about 8.3 minutes to reach on Earth. Apart from the Sun, the other stars closest to Sun include Alpha Centauri system and the Sirius star systems.

The Alpha  Centauri system includes the stars Alpha Centauri A, Alpha Centauri B and Proxima Centauri. This system is 4.37 light-years away from the Earth. The third star, Proxima Centauri is 4.24 light-years away from the Earth i.e., the light from it takes 4.24 years to reach the Earth.

The Sirius star systems include Sirius A (Dog Star) and Sirius B. It is about 8.6 light years from Earth and so the light about 8.6 years to reach the Earth.

You might be interested in
Element Q is an element that has a metallic shininess, has good heat conductivity, and is very brittle. To which of the followin
vovangra [49]

Answer:

C. metals

Explanation:

Elements in the periodic table are grouped into metal and non-metals depending on their characteristics. Metals usually possess the following characteristics:

- High melting and boiling point

- Brittle i.e. ability to break

- lustre i.e. ability to shine when polished.

- Good conductor of heat and electricity

Based on this above characteristics, element Q in this question is a METAL because it posseses the same qualities that a metal does.

6 0
2 years ago
Which of these might be considered benefits of climate change ? select the two correct responses
ASHA 777 [7]

Answer:

I need the answer choices moron.

Explanation:

4 0
3 years ago
Read 2 more answers
All organisms make their proteins from:
Helen [10]
<span>20 amino acids
hope this helps
:0

</span>
3 0
2 years ago
Drosophila melanogaster (select all that apply): Group of answer choices Have the significant disadvantage of a multiple-month l
vovikov84 [41]

Answer:

Contains large polytene chromosome that permit visual inspection of genomic events.

Were used to study the genetic effects of mutations.

Were used to establish the concept of chromosomal inheritance.

Explanation:

<em>Drosophila melanogaster </em>is a model organism that is used by scientists to study the genes and effect of a mutation on the genes. Drosophila is used as a model organism as it has a very short life cycle and the offspring can be produced in a short duration of time.

Because of these characteristics, Thomas Hunt Morgan wanted to study the factors of inheritance on the <em>Drosophila</em> and concluded in the form of the chromosomal theory of inheritance by the effect of mutation on genes that lead to linkage mapping.

Also, the salivary gland of fruit fly contains the polytene chromosome which allows us to look into the gene events.

Thus, the selected options are correct.

8 0
2 years ago
Why does the use of antibiotics need to be controlled?
grigory [225]
So it can be used when having you know what with 2 other ppl a male and a female

6 0
3 years ago
Other questions:
  • At higher elevations, the boiling point of water decreases, due to the decrease in atmospheric pressure. As a result, what could
    12·2 answers
  • Complete paralysis of the diaphragm occurs if the spinal cord is crushed or destroyed just below the c5 region.
    10·1 answer
  • Why dont platelets form plugs in undamaged vessels?
    15·1 answer
  • How do human population growth, pollution and overuse affect<br>biodiversity?​
    5·1 answer
  • The phospholipid bilayer also contains ____ which links the fatty acids together.
    5·1 answer
  • Which widely used system of government did ancient Greece contribute to the modern world? A. democracy B. monarchy C. republican
    6·2 answers
  • What differentiates one amino acid from the other?
    6·1 answer
  • Why is development work necessary for the development of nation?​
    8·1 answer
  • Which of the following are not biotic or abiotic factors in an ecosystem???
    12·1 answer
  • Coprophagy is important for the nutritional balance of _________.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!