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
Sonja [21]
3 years ago
13

When does a protostar become a true star?

Geography
1 answer:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

C) when nuclear fusion begins in the core

Explanation:

  • <u>The protostar is a main-sequence star that has a core temperature that exceeds abut 10 million K and is needed for the hydrogen to operate efficiently and the </u><u>length </u><u>of this process depends on nature and the stellar </u><u>mass</u><u>, as the huge massive star have a greater and bigger core and fusion takes fast. </u>
  • A protostar is also called as primitive star and represents the earliest phases of the process of the stellar evolution and takes place after it leaves form the main sequence star.
You might be interested in
Which fossil fuel can be stored underground until use or transported through pipelines and liquefied?
Nesterboy [21]

Answer:

natural gas

Explanation:

Natural gas is the fossil fuel which can be stored underground due to the fact that, it is easily evaporated when exposed to the air. <em>To prevent its loss due to exposure, there is need to store it below its normal temperature thereby liquefying it (making it to exist as a liquid rather than gas). Also, transportation through the pipelines helps in its protection rather than open transportation using trucks due to its high volatile nature.</em>

7 0
3 years ago
he total number of species living in a particular area is referred to as its O biosphere O biome O biotic O biodiversity
MrMuchimi

Answer:

The  total number of species living in a particular area is referred to as its Biodiversity .

Explanation:

Biodiversity -

Biodiversity is defined as the variability and the variety of life existing on the planet Earth . Biodiversity measures the variation in the species , genetics and the ecology of the Planet . In the terrestrial level , the biodiversity is greater near the equator , due to warmer climate and higher level in production .

The biodiversity is not uniformly distributed on the planet , and is basically richer in the tropical region . Less than 10 percent of the Earth's surface is covered by the tropical forest ecosystems and contains around 90 percent of the world's species .

The diversity of marine life is higher near the Western pacific and in the mid latitude band , where the sea surface temperature is highest .

3 0
3 years ago
Discuss how migration has changed the cultural landscape of Europe and how immigrant groups have challenged or been challenged b
Afina-wow [57]

Answer:

The migration has changed the cultural landscape of Europe and immigrant groups have challenged or been challenged by ideas of nationalism is explained below in complete explanation.

Explanation:

Individuals who migrate encounter various pressures that can influence their reasoning well being, including the suppression of cultural models, religious practices, and social support arrangements, adaptation to a new culture, and diversity in personality and thought of self. positive outcomes of Nationalism—supports a feeling of identity, joins people, develops self-esteem. negative outcomes—commences conflicting with others.

4 0
3 years ago
If carbon dioxide is denser than air and can form clouds that displace oxygen, why are we all still alive?
Andre45 [30]

Answer:

Plants breathe carbon dioxide and expel air for us to breathe thus is why we are not all dead...yet

Explanation:

8 0
4 years ago
Discuss the origin and characteristic of atmospherie and ocean circulations and their interdependence.?​
Inessa05 [86]

recording your question ok

6 0
3 years ago
Other questions:
  • Select the nation that governed with a monarchy, but whose leader was limited in power due to the lawmaking body of Parliament.
    6·2 answers
  • What crop is grown in the dryer Northern area of Nigeria?
    14·1 answer
  • Which is a future NASA research project? Check all that apply.
    13·2 answers
  • Why is it important to keep the people of a country happy? (world geography)
    11·1 answer
  • Which of the following does not describe europe after that fall of the western roman empire?
    15·1 answer
  • What does it mean when a map is drawn to scale
    13·1 answer
  • In what state is little rock the capital ??
    10·2 answers
  • During Wegener’s time, scientists thought land bridges linked continents together. The land bridges then became submerged underw
    10·2 answers
  • What is the full form of xpyt​
    11·2 answers
  • Which challenges have eastern European countries faced in their transitions to new governments and economies?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!