Read the passage carefully and answer the questions: The Sun appears to have been active for 4.6 billion years and has enough fuel to go on for another 5 billion years or so. At the end of its life, the Sun will start to fuse helium into heavier elements and begin to swell up, ultimately growing so large that it will swallow the Earth. After a billion years as a red giant, it will suddenly collapse into a white dwarf - the final end product of star like ours. It may take a trillion years to cool off completely . It just happens that the Moon and the Sun appear the same size in the sky as viewed from the Earth. And since the Moon orbits the Earth in approximately the same plan as the Earth’s orbit around the Sun sometimes the Moon comes directly between the Earth and the Sun. This is called solar eclipse ; if the alignment is slightly imperfect then the Moon covers only part of the Sun’s disk and the event is called a partial eclipse. When it lines up perfectly the entire solar disk is blocked and it is called a total eclipse of the Sun.
1. fusing of helium into heavier elements will result in *
fusing of Sun
end of the Sun’s life
swelling of Sun
swelling of Earth
Answers
Answered by
1
Answer:
Explanation:
After the hydrogen in the star's core is exhausted, the star can fuse helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Up to this point, the fusion process releases energy. The formation of elements heavier than iron and nickel requires an input of energy.
Answered by
4
Answer:
1) Swelling of the Sun.
Hope it Helps!!!
Similar questions