Geology 109 Exam- Questions & ANSWERS 100%
RATED CORRECT- SURE PASS!! | Newest 2025
Which of the following are the characteristics of the asteroid belt? (Select all that apply.)
- ✔✔The asteroids mark the transition from the rocky terrestrial planets to the outer
planets.
Some asteroids appear to be rocky; some seem covered with lava; others seem to be
metallic; and yet others may have water ice.
Many meteorites that fall on Earth come from the asteroid belt.
According to our best modern day evidence, how long ago was the Big Bang? -
✔✔About 14 billion years ago.
The most basic subatomic particles include which of the following? (Select all that
apply.) - ✔✔Protons
Neutrons
Electrons
How are elements heavier than iron produced? - ✔✔During a supernova explosion
What is the principal method of light element (up to iron, atomic number 26)
production? - ✔✔nuclear fusion
The T-Tauri phase of a star's history - ✔✔is typified by extreme fluctuations in energy
and a strong magnetic field
Many supernovas are the result of - ✔✔collapse of a star with multiple burning shells
, How will the Sun's life probably end? - ✔✔With the formation of a planetary nebula.
Which of the following are correct about red giant stars? (Select all that apply). -
✔✔They form as a star expands and the surface cools.
They evolved from medium-sized stars.
Put the following stages in the evolution of a medium-sized star in the correct time
order, placing the first stage on the top and the last stage on the bottom. - ✔✔First
Stage:
Molecular Cloud
Protostar
Main Sequence Star
Red Giant
Planetary Nebula
Which kind of stars have the longest lifetimes (~10 billion years)? - ✔✔Medium-sized
stars like our Sun.
A giant molecular cloud is best described by which statement? - ✔✔It is a cool mass
of gas and dust that can be light years across.
Which of the following is correct about the nebulas we see in the sky today? (Select all
that apply.) - ✔✔They are concentrations of interstellar gas and dust.
Many are the birth grounds of stars.
Some form when stars explode.
RATED CORRECT- SURE PASS!! | Newest 2025
Which of the following are the characteristics of the asteroid belt? (Select all that apply.)
- ✔✔The asteroids mark the transition from the rocky terrestrial planets to the outer
planets.
Some asteroids appear to be rocky; some seem covered with lava; others seem to be
metallic; and yet others may have water ice.
Many meteorites that fall on Earth come from the asteroid belt.
According to our best modern day evidence, how long ago was the Big Bang? -
✔✔About 14 billion years ago.
The most basic subatomic particles include which of the following? (Select all that
apply.) - ✔✔Protons
Neutrons
Electrons
How are elements heavier than iron produced? - ✔✔During a supernova explosion
What is the principal method of light element (up to iron, atomic number 26)
production? - ✔✔nuclear fusion
The T-Tauri phase of a star's history - ✔✔is typified by extreme fluctuations in energy
and a strong magnetic field
Many supernovas are the result of - ✔✔collapse of a star with multiple burning shells
, How will the Sun's life probably end? - ✔✔With the formation of a planetary nebula.
Which of the following are correct about red giant stars? (Select all that apply). -
✔✔They form as a star expands and the surface cools.
They evolved from medium-sized stars.
Put the following stages in the evolution of a medium-sized star in the correct time
order, placing the first stage on the top and the last stage on the bottom. - ✔✔First
Stage:
Molecular Cloud
Protostar
Main Sequence Star
Red Giant
Planetary Nebula
Which kind of stars have the longest lifetimes (~10 billion years)? - ✔✔Medium-sized
stars like our Sun.
A giant molecular cloud is best described by which statement? - ✔✔It is a cool mass
of gas and dust that can be light years across.
Which of the following is correct about the nebulas we see in the sky today? (Select all
that apply.) - ✔✔They are concentrations of interstellar gas and dust.
Many are the birth grounds of stars.
Some form when stars explode.
