Stars, Galaxies, And The Universe AND Formation Of The Solar System #2 Question Preview (ID: 33132)


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In what layer of the sun is energy produced?
a) core
b) radiative zone
c) convective zone
d) chromosphere

The planets of the solar system formed as
a) planetesimals collided into one another
b) planetesimals flattened into a rotating disk
c) the sun absorbed extra gas and dust from the solar system
d) the center of the gas cooled

What factor allowed the sun to form in the solar system?
a) intense heat at the center of the solar nebula
b) the division of helium atoms
c) the explosion of planetesimals
d) the division of hydrogen atoms

How do sunspots affect the Earth?
a) Sunspot activity might affect Earth's temperatures
b) low sunspot activity might contribute to global warming
c) Sunspot activity has been linked to hurricanes
d) Sunspot activity could send electrically charged particles into Earth's atmosphere.

What happens during nuclear fusion in the sun?
a) Hydrogen nuclei combine to form helium
b) Helium nuclei combine to form hydrogen
c) Oxygen nuclei combine to form helium
d) Helium nuclei combine to form oxygen

Hot gases are carried to the sun's visible surface from a region called the _______.
a) convective zone
b) radiative zone
c) chromosphere
d) core

Energy leaves the sun as light from a region called the _________.
a) photosphere
b) chromosphere
c) corona
d) radiative zone

How do scientists know the universe is expanding?
a) redshift
b) blueshift
c) the galaxies are spreading out
d) all of the above

Earth's period of revolution is about
a) one year
b) one day
c) one week
d) three months

What caused the solar system to form?
a) the collapse of the solar nebula
b) the growth of the solar nebula
c) the birth of a nearby star
d) nuclear fusion in the sun

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