Other Objects in the Solar System Answers

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In a Venn diagram, the separate circles contain characteristics unique to each item being compared and the intersections contain characteristics that are common to both items being compared. This Venn diagram compares meteoroids, asteroids, and comets.

Question illustration
A
A 4 row table. Row 1: Brown section, Center area common to all circles, Rock or dust based space object. Row 2: Yellow circle, Top circle, Made of nickel and iron. Row 3: Red circle, Bottom right circle, between 1 kilometer and 900 kilometers in size. Row 4: Blue circle, Bottom left circle, Generate a coma as they head toward the sun.
Option A
B
A 4 row table. Row 1: Brown section, Center area common to all circles, Between 1 kilometer and 900 kilometers in size. Row 2: Yellow circle, Top circle, Made only of iridium. Row 3: Red circle, Bottom right circle, Rock or dust based space object. Row 4: Blue circle, Bottom left circle, Generate a coma as they head away from the sun.
Option B
C
A 4 row table. Row 1: Brown section, Center area common to all circles, Rock or dust based space object. Row 2: Yellow circle, Top circle, Between 1 kilometer and 900 kilometers in size. Row 3: Red circle, Bottom right circle, Generate a coma as they head toward the sun. Row 4: Blue circle, Bottom left circle, Made of nickel and iron.
Option C
D
A 4 row table. Row 1: Brown section, Center area common to all circles, Between 1 kilometer and 900 kilometers in size. Row 2: Yellow circle, Top circle, Generate a coma as they head away from the sun. Row 3: Red circle, Bottom right circle, Rock or dust based space object. Row 4: Blue circle, Bottom left circle, Made only of iridium.
Option D
3

A scientist finds a piece of rock in a crater. He analyzes the rock and realizes that the composition is mostly of iron and nickel. He claims that he found a meteor. What is most likely the scientist’s error?

A
He actually found a meteorite.
B
His analysis of the composition is not correct.
C
He incorrectly used the term “crater.”
D
He actually found a meteoroid.
4

Which statement about dwarf planet locations is correct?

A
Eris is found in the Kuiper Belt and Makemake, Haumea, Ceres, and Pluto are found in the asteroid belt.
B
Ceres is found in the asteroid belt and Eris, Makemake, Haumea, and Pluto are found in the Kuiper Belt.
C
Ceres and Pluto are found in the Kuiper Belt and Makemake, Eris, and Haumea are found in the asteroid belt.
D
Haumea and Makemake are found in the asteroid belt and Pluto, Ceres, and Eris are found in the Kuiper Belt.
6

Iridium is a substance found only in asteroids and other space objects. This graph shows the amount of Iridium found in different sediment layers of Earth. They are marked off into 17 sections representing time.

Question illustration
A
A massive volcano erupted, causing global warming and lava flow, which in turn caused mass extinction.
B
More iridium was produced by space objects and dumped by local factories.
C
The impact of a space object led to the deposit of a layer of sediment high in iridium.
D
Fewer impacts lead to a drop in iridium levels and a mass extinction caused by a lack of sunshine.
7

65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids. What most likely killed off the dinosaurs?

A
An asteroid impact caused the Sun to be blocked.
B
They were crushed by an asteroid.
C
The water supplies were polluted.
D
Mammals evolved to be better competitors.

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