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Arrange the events in the life of a star in the correct order.


All that remains of the star now is the core. In some cases, the star turns into a black hole.

As the nuclear fusion sets off a chain reaction, the nebula gets hotter and brighter and turns into a star.

The star stays in the main sequence stage for a long time.

The star runs out of hydrogen and turns into a planetary nebula or a supernova, depending on its mass.

Heavy elements are created when the supernova explodes.

The temperature increases in the center of a nebula, and nuclei begin to fuse.

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Lanuel

The events in the life of a star are arranged in the correct sequential order as: F, B, C, D, E and A.

A star is a giant astronomical or celestial object that comprises a luminous sphere of plasma and bounded together by its own gravitational force.

Generally, a star is typically made up of two (2) main hot gas and these are Hydrogen (H) and Helium (He).  Some examples of a star are;  

  • Antares.
  • Canopus.
  • Betelgeus.
  • Sun (closest to planet Earth).
  • Vega.

A nebula can be defined as a low-density cloud of interstellar gas (hydrogen and helium) and dust. The characteristics of a nebula includes the following;

1. It is needed to create a star.

2. It is made up of hydrogen (H) and Helium (He).

3. It is an interstellar cloud of gas and dust

The events in the life of a star arranged in the correct sequential order are;

  • Stage 1: the temperature increases in the center of a nebula, and nuclei begin to fuse.
  • Stage 2: as the nuclear fusion sets off a chain reaction and provides enough energy, the nebula gets hotter and brighter and turns into a star.
  • Stage 3: the star stays in the main sequence stage for a long time while fusing hydrogen gas with helium gas.
  • Stage 4: the star runs out of hydrogen and turns into a planetary nebula, a white dwarf or a supernova, depending on its mass.
  • Stage 5: heavy elements are created when the supernova explodes.
  • Stage 6: all that remains of the star now is the core. In some cases, the star turns into a black hole.

In conclusion, the larger the size of a star, the shorter would be its life span, which is usually in billions of years.

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Answer:

F, B, C, D, E and A.

Explanation:

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