Question

The Solar System extends to a distance of at least 100,000 A.U., which is the same as saying...

a

It extends to about 100,000 times the distance between the Earth and the Sun.

b

It extends to about 100,000 times the distance light can travel in one year.

c

It extends to about 100 times the distance between the Earth and the Sun.

d

It extends to about 100 times the distance light can travel in one year.

Which of the following is true about the births and deaths of stars?

a

Stars have always existed in the Universe, but when they die they explode and create more gas and dust in the Universe.

b

Stars are born from clouds of gas and dust, and when they die they collapse inward making all the gas and dust from which they were made unavailable for the birth of new stars.

c

When stars are born they create gas and dust, and when they die they re-consume the very gas and dust they made.

d

Stars are born from clouds of gas and dust, and when they die they return gas and dust to the galaxy from which new stars can be born.

I found the information in this reading to be... (Note: there is no incorrect answer, please answer honestly)

a

Very interesting

b

Kind of interesting

c

Not that interesting, but perhaps helpful

d

Extremely boring and unhelpful

Answer 1

a. It extends to about 100,000 times the distance between the Earth and the Sun.

d. Stars are born from clouds of gas and dust, and when they die they return gas and dust to the galaxy from which new stars can be born.

b. Kind of interesting

Step-by-step explanation:

• The average distance between the sun and the earth is called one astronomical unit.
• It is the unit of length to measure the distance in our solar system.
• It is equal to 1.49 x 10¹¹ m
• It is analogous to the light-year to measure the distance of distant stars.
• So according to this unit, our solar system extends about 100,000 times the distance between the Earth and the Sun.