SIO15 Quiz 3b

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SIO15 Quiz 3b

Solar System

4) Check all that apply: Which of these is NOT a terrestrial planet? *

1 point

Mercury

Pluto

Earth

Moon

Uranus

Required

10) Check all that apply: Which of these describes a meteor? *

1 point

space object approaching Earth

light phenomenon when object burns up in atmosphere

shooting star

surviving fragment after an impact

impact crater

Required

5) Which feature in the Solar System separates the terrestrial planets from the giant planets? *

1 point

Oort cloud

Van Allen belt

Asteroid belt

Kuiper belt

the Sun

3) Earth is younger than the universe. *

1 point

true

false

7) Which of these definitions apply to dwarf planets but NOT regular planets in the Solar System? *

1 point

has not cleared the neighborhood around its orbit

is not a satellite of a planet or other nonstellar body

has sufficient mass to assume nearly round shape

has own orbit around the Sun

8) Which of these best describes a comet? *

1 point

dirty snowball

comes from the Asteroid belt

resembles a terrestrial planet

gassy

rocky

2) What is Earth's approximate age? *

1 point

14 billion years

4.5 billion years

14 million years

4.5 million years

4500 years

1) What is the approximate age of the universe? *

1 point

30 billion years

14 billion years

4.5 billion years

14 million years

4.5 million years

6) Check all that apply: Which of these statements describe terrestrial planets? *

1 point

inside Asteroid belt

has its own orbit around the Sun

rocky

beyond the Asteroid belt

has no satellites

Required

9) All comets approach Earth every 75 years. *

1 point

true

false

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