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
Yuri [45]
3 years ago
14

Which help scientists learn about the temperature and composition of stars

Biology
1 answer:
leva [86]3 years ago
7 0

Answer:

Spectroscopy

Explanation:

Spectroscopy is a tool that scientists typically use to determine the mass, structur and the temperature of stars or other objects within the observable universe.  

In general, scientists take a spectrum of the object they observe using a spectrograph. It is based on the theory that the lines of absorption at a given wavelength are special for each element.

Hence, the correct answer is spectroscopy or spectrograph.

You might be interested in
Variation within organisms in a species increases the chance that a species will survive changing conditions. What kind of repro
klemol [59]

Answer:

Sexual reproduction

Explanation:

please mark as brainlist answers

6 0
3 years ago
Give three instantaneous scale (time) examples of Earth's systems, two long-term scale (time) examples of Earth's sytems, and th
Goshia [24]

The Earth comprises many spheres of subsystems, which associate with each other to develop a composite and spontaneously changing system of the Earth. The processes taking place in the system of the Earth occurs on spatial scales changing from fractions of millimeters to thousands of kilometers, and on time scales, which varies from milliseconds to billions of years.  

The examples of instantaneous scales are a rotation of the Earth, breathing, an earthquake.  

The examples of long-term scales are making coal and plate tectonics.  

The system of the Earth is featured by various overlapping cycles in which matter is recycled again and again. The cycles involve interactions between multiple spheres and systems. The examples of cycles are rock cycle, day and night, and seasons.  

Volcanoes discharge a huge concentration of particulate matter into the atmosphere. These particles function as nuclei for the development of droplets of water (hydrosphere). The rainfall, that is, hydrosphere usually upsurges after an eruption, initiating growth of the plant (biosphere). Thus, volcanoes and volcanic activities are a good illustration of system interactions.  


8 0
3 years ago
Read 2 more answers
when the atmosphere changes due to the human activities, how does the change affect humans in return?
Valentin [98]

Answer:

Climate change effects such as hunger, poverty and diseases like diarrhea and malaria, disproportionately impact children; about 90 percent of malaria and diarrhea deaths are among young children. Children are also 14–44 percent more likely to die from environmental factors, again leaving them the most vulnerable.

Explanation:

여기 당신의 대답이 있습니다 당신이 즐기고 나를 브레인리스트로 표시하기를 바랍니다 감사하다

6 0
2 years ago
Read 2 more answers
Is the nitrogen cycle the most important cycle?
wariber [46]

Answer:

Explanation:

The nitrogen cycle is an important cycle to the atmosphere. Nitrogen is an essential part of biological molecules such as proteins and nucleic acid, which makes nitrogen essential for all living organisms. Nitrogen makes up 78 percent of the atmosphere.

5 0
3 years ago
Read 2 more answers
Which amino acids are the primary nitrogen donors for biosynthetic reactions in the cell?
prohojiy [21]
Glutamine and glutamate are the primary nitrogen donors for biosynthetic reactions in the cell.  Glutamine is an α-amino acid that is used in the biosynthesis of proteins. Its side chain is similar to that of glutamic acid, except the carboxylic acid group is replaced by an amide. It is classified as a charge-neutral, polar amino acid. It is non-essential and conditionally essential in humans, meaning the body can usually synthesize sufficient amounts of it, but in some instances of stress, the body's demand for glutamine increases, and glutamine must be obtained from the diet. Glutamate is generally acknowledged to be the most important transmitter for normal brain function. Nearly all excitatory neurons in the central nervous system<span> are glutamatergic, and it is estimated that over half of all brain synapses release this agent. Glutamate plays an especially important role in clinical neurology because elevated concentrations of extracellular glutamate, released as a result of neural injury, are toxic to neurons</span>
5 0
3 years ago
Other questions:
  • _____ phase is the period during the life of a cell between the end of mitosis and the synthesis of more genetic material.
    12·1 answer
  • What are pollutants that are put directly into the air as a result of human activity?
    11·1 answer
  • What is the function of Vaculoes
    12·2 answers
  • Explain what occurs in cell differentiation and morphogenesis
    14·1 answer
  • What is the leading cause of unintentional injury death for americans at all ages?
    7·1 answer
  • Which organelle contains enzymes to break down waste?
    14·1 answer
  • Cats can begin reproducing as young as six months of age. Each female cat can produce two litters per year, containing multiple
    6·2 answers
  • Rashad is studying for tomorrow's biology exam. He has been reading and taking notes for hours, and he feels like he cannot stud
    15·1 answer
  • 2 more questions then i'll be done with science
    15·1 answer
  • Which of the following describes a negative feedback system?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!