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
evablogger [386]
4 years ago
14

About 90 percent of stars on the Hertzsprung-Russell (H-R) diagram are _____.

Biology
2 answers:
Volgvan4 years ago
8 0

main sequence stars

...................................










Step2247 [10]4 years ago
6 0

Answer: main-sequence stars

Explanation:

Hertzsprung-Russell (H-R) diagram shows the relation between temperature of stars and their luminosity.

It shows the position of stars in its life-cycle. Star takes birth in nebula and moves to main-sequence. When the fuel finishes, it forms red-giant or super-giant depending on the mass of the star. The red-giant moves on to become white dwarf and super-giant goes supernova and forms neutron star or black-hole.

Most of stars in the H-R diagram are main-sequence stars as majority portion of their life-time stars spend sin main-sequence.

You might be interested in
Use the diagram to answer each question. How do volcanoes form at A?  
Andre45 [30]

Answer:

Volcanoes are formed at the divergent and convergent plate boundaries.  

<u>During a divergent plate motion, along the mid-oceanic ridge, seafloor spreading takes place. Here it is represented by location B. Due to this, the magma becomes extremely hot and exerts an upward pressure towards the seafloor</u><u>. </u><u>As a result of which the ocean floor slowly rises up forming sea volcanoes.</u> The eruption takes place and the lava forms and deposits on the seafloor, near and along the mid-oceanic ridge. As this region undergoes continuous spreading, so the crust comprised of these rocks slowly moves away from the ridge.

4 0
4 years ago
It’s biology someone help
Wewaii [24]
Ecosystem and a pond
3 0
3 years ago
Urban landfills use procedures that increase the decay rate for most trash. accelerate the process by which aluminum is recycled
Flauer [41]
I'm assuming that the choices are the ways urban landfills use to increase decay rate for most trash? If so, then the answer would be '<span>increase the number of aerobic bacteria'. Increasing the number of aerobic bacteria increase the decay rate for most trash.</span>
8 0
4 years ago
Pls help ill give you extra points if you do!
balu736 [363]

Answer:

the steeper the ramp the further the cup is going to move

Explanation:

8 0
3 years ago
What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?
pshichka [43]
The main function of the PNS is to connect the CNS to the limbs and organs. The PNS sends information to the CNS as quickly as possible.
I hope this helps :)
4 0
3 years ago
Read 2 more answers
Other questions:
  • What would happen if there were no abiotic factors in an ecosystem?
    7·1 answer
  • Which of these processes always causes a physical change of the shape of a material?
    14·1 answer
  • Which of the following describes the grains found in igneous rocks?
    6·1 answer
  • Can someone help with question 6?
    13·1 answer
  • The majority of water found on Earth is: <br><br> ice<br> water vapor<br> fresh water<br> salt water
    11·1 answer
  • A scientist attends an annual conference hosted by the American Medical Association. At which type of event is she most likely t
    5·2 answers
  • Hiii! So I was doing science, and it's not my best subject. And on one question, I was stuck, so I came to Brainly to see if any
    11·1 answer
  • How do Zoos have animals develop extreme health complications.
    12·2 answers
  • Which resource is likely a limiting factor for plants living in hot and arid deserts?
    10·2 answers
  • To believe that humans are ______ is to believe that humans act on the basis of reason.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!