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1. Events involving a disk-shaped nebula occurred before the nuclear fusion that led to the birth of the solar system. Which two statements about the disk-shaped nebula are true?
Gravity caused the disk-shaped nebula to shrink.
Gravity caused the nebula to flatten out in its disk-like shape.
Rotational motion caused the disk-shaped nebula to shrink.
Rotational motion caused the nebula to flatten out in its disk-like shape.
The flattening of the disk caused the speed of rotation to decrease.

2. Match each orbiting body to its attribute.
varies greatly in size from one to the next
has a characteristic glow
usually burns up if it enters Earth's atmosphere
primarily made of hydrogen and helium
Comet
Meteoroid
Gas giant
Asteroid

3. What are two reasons why the terrestrial planets formed closer to the Sun after the supernova event that initiated the formation of the solar system?
They are made of denser objects, which can condense at relatively high temperatures.
They contain lightweight materials that condense in areas of relatively low radiation.
They are made of heavier elements, which have a stronger gravitational attraction to the Sun.
They are relatively small in size, so the Sun’s gravity has a strong influence on them.
They have gaseous surfaces, which is ideal in those areas of high radiation near the Sun.

Sagot :

quandaledinglefan123

Answer:

1. Gravity caused the disk-shaped nebula to shrink.

Rotational motion caused the nebula to flatten out in its disk-like shape

2. Comet - has a characteristic glow
    Meteoroid - usually burns up if it enters Earth's atmosphere
    Gas giant - primarily made of hydrogen and helium
    Asteroid - varies greatly in size from one to the next

3. They are made of denser objects, which can condense at relatively high temperatures

They are made of heavier elements, which have a stronger gravitational attraction to the Sun

Explanation:

These should be the correct answers. Hope this helped!

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