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Aleks [24]
3 years ago
9

How is light used to study space?

Biology
2 answers:
bogdanovich [222]3 years ago
8 0
<span>We use the speed of light to calculate how far apart the stars are, and to estimate the size and age of the universe. Speed-of-light calculations are what confirmed that the universe is expanding. And because light takes a certain amount of time to get here, when we look at the stars, we're literally looking back in time, to what the universe was like millions of years ago</span>
devlian [24]3 years ago
7 0
We use the speed of light to calculate how far apart the stars are, and to estimate the size and age of the universe. Speed-of-light calculations are what confirmed that the universe is expanding. And because light takes a certain amount of time to get here, when we look at the stars, we're literally looking back in time, to what the universe was like millions of years ago: 

<span>"The speed of light is particularly important in astronomy. Due to the vast distances involved it can take a very long time for light to travel from its source to Earth. For example, it takes 13 billion years for light to travel to Earth from the faraway galaxies viewed in the Hubble Ultra Deep Field images. Those photographs, taken today, capture images of the galaxies as they appeared 13 billion years ago (near the beginning of the universe)." </span>

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Answer:

The answer is d. volcanos

hope this helps

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3 years ago
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Which scenario is a competitive network?
nika2105 [10]

Answer:

Scenario I, Scenario II, and Scenario III are examples of competitive networks.

Explanation:

There are different examples of nets as interactions between species. Trophic net is a very common example of these interactions. Another one is the competitive network.

The competitive network refers to the competition for the same resource between different species in a community or ecosystem. When a resource is useful for two or more species, they compete to gain it.

The competitive network can be represented as arrows that indicate which is the dominant species over the other. This representation must be done with a<u> minimum of two species interacting</u> and indicating through the direction of the arrow, which species wins the competition.

There is a competitive hierarchy when there are more than two species, for example, species A, B, and C. Species A dominates over the other two, and species B dominates over species C. In these cases, the representation would be A --> B --> C. This reflects a transitive competitive network. Species A displaces species B and C, and species B displaces species C. The only species that can persist is A. This example can be extended to <u>any number of species</u>, which suggests that a hierarchy network does not promote biologic diversity.

8 0
4 years ago
In which part of Asia is the Arabian Peninsula<br> located?
d1i1m1o1n [39]

Answer:

Hiya there!

Explanation:

Southwest Asia

Arabia or the Arabian Peninsula is a peninsula in Southwest Asia, northeast of Africa between the Red Sea in the west and the Persian Gulf in the east. The southern part of the peninsula is bounded by the Gulf of Aden in the southwest and the Gulf of Oman, and the Arabian Sea (Indian Ocean) in the southeast.

<em><u>Hope this helped!</u></em> :D

Credit sourced from "nationsonline"

8 0
3 years ago
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A portion of the dna molecule containing a sequence of base pairs that encodes a particular protein is known as a:
irina1246 [14]
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Marianna [84]

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Mitotic phase has a multiple steps this is where the duplicated chromosomes are aligned or arranged, separated, and move into two new, identical daughter cells(cytokinesis)

The first step in the mitotic phase is called karyokinesis or nuclear division where the chromosomes are separated and move in opposite direction and the second portion of the mitotic phase, called cytokinesis which is the physical separation of the chromatids into the two daughter cells.

7 0
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