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
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>

You might be interested in
What is epinephrine and what function does it have?
jek_recluse [69]
It is a catecholamine. It is also known as adrenaline. It will increase the heart rate and other flight or fight responses.
3 0
3 years ago
How would being able to bring water into the gills when the mouth is closed benefit a bottom-dwelling shark or ray?
trapecia [35]

Answer:

The ability to bring water into the gills when the mouth is closed would benefit a bottom dwelling shark or ray, because it would allow them to be more discreet when in the process of catching prey and they would be able to stop swimming. Most sharks have to continuously swim or else they would sink, while being able to bring water into the gills when the mouth is closed would highly benefit them and allow them to stop swimming for a moment.

Explanation:

I am not 100% sure this is the correct answer, but I am currently doing a lab on this, so I am using the knowledge I previously had and online resources. I am pretty confident though.

6 0
3 years ago
What causes the
White raven [17]

Answer:

B

Explanation:

B is the answer because the magnetic field of the earth attracts sun Ray's

5 0
2 years ago
In which Colorado Rockies scenario was there more erosion? Why was there more erosion in the scenario?
Pavlova-9 [17]

Answer:

There was more erosion in the Colorado Rockies scenario where there was steady rain compared to the scenario in the same area where there was only a drizzle. There is more erosion because the steady rain increased the volume of the river more than the drizzle did. Because there was more water added to the river, the river flowed faster. The faster a river flows, the more sediments it transports or erodes.

Explanation:

hope this helps<3

8 0
2 years ago
Read 2 more answers
In plant roots, the Casparian strip _ Group of answer choices (A) aids in the uptake of nutrients; (B) provides energy for the a
swat32

Answer:

Option-D

Explanation:

Casparian strips are the strips or band composed of a hydrophobic substance called the suberin which forms the ring-like structure in the endodermis of the vascular plants.

The Casparian strips are present around the vascular bundles in the endodermis to allow the uptake of the selective nutrients as the substance has to pass through the cell membrane before it enters the centre of the root or stele or vascular bundles.

The Casparian strips allow the movement of a substance through symplast mode only, therefore, is ensures the substance to pass through the cell membrane.

Thus, Option-D is correct.

3 0
3 years ago
Other questions:
  • In guinea pigs, black fur (B) is dominant over white fur (b) and rough fur (R) is dominant over smooth fur (r). A cross between
    5·1 answer
  • Describe the key ways in which the atmosphere affects earth. what is the greenhouse effect, and how does it work
    5·1 answer
  • How would you describe amino acids in<br> proteins?
    9·2 answers
  • A ________ is a model that imitates a real-world situation. What goes in the blank? Also my other question is, A _________ is an
    6·1 answer
  • What is the correct term for the point at which the maximum rate of oil extraction is reached?
    5·1 answer
  • What is the semi-solid food found inside the stomach during digestion called????
    6·1 answer
  • which statement best describes science? a. science can answer only math b. Science can answer all the questions c. science canno
    5·1 answer
  • Why is it evolutionarily adaptive for flytraps to “eat” insects?
    10·1 answer
  • The universe expanding can be compared to:
    14·1 answer
  • 2. Which stage of interphase do we see DNA being replicated?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!