EAPS-106 TEST 3 QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTION.
When gas comes off of a comet, which direction does it head to form the gas
tail?
(a) Away from the Sun
(b) Away from the direction the comet is traveling
(c) Away from Sun and away from the direction that the comet is traveling
(d) Toward the Sun and toward the direction that the comet is traveling
Answer - (a) Away from the Sun
Why is Haley's comet the most famous of all comets?
(a) It is the only comet visible to the naked eye that comes around about once
in a lifetime.
(b) It is the only comet to orbit the Sun inside of Jupiter's orbit.
(c) It has the longest tail of any comet viewed from Earth.
(d) All of the above Answer - (a) It is the only comet visible to the naked eye
that comes around about once in a lifetime.
True or False. It is possible for a large solar flare to completely burn the surface
of the Earth.
(a) True
(b) False Answer - (b) False
,How was the Chicxulub Crater discovered?
(a) It is easily observed from space.
(b) Noticed changes in Earth's magnetic field.
(c) From ground-penetrating radar images that revealed a buried crater.
(d) Based on small observed changes in the Earth's gravity field. Answer - (d)
Based on small observed changes in the Earth's gravity field.
Which is NOT evidence that a large impact killed off the dinosaurs?
(a) An abundance of Iridium found at the Cretaceous-Paleogene boundary.
(b) Fossilized dinosaur bones showing burns.
(c) Shocked quartz found at the Cretaceous-Paleogene boundary.
(d) The Chicxulub Crater is the right size and age. Answer - (b) Fossilized
dinosaur bones showing burns.
Who was the mascot used by the U.S. Forest Service to promote fighting all
forest fires that then led to a generation of massively destructive fires?
(a) Bullwinkle the Moose
(b) Mickey Mouse
(c) Smokey the Bear
(d) Rocky the Flying Squirrel Answer - (c) Smokey the Bear
True or False: If you combined all of the mass of the asteroid belt, it would add
up to a body bigger than the Moon.
(a) True
(b) False Answer - (b) False
On average, which is the closest planet to Earth?
, (a) Mercury
(b) Venus
(c) Mars
(d) Jupiter Answer - (a) Mercury
Where does most impact ejecta land (consider the ejecta blanket, not the
crater rays)?
(a) Within 1 crater diameter from the crater rim.
(b) Within 2 crater diameters from the crater rim.
(c) Within 5 crater diameters from the crater rim.
(d) Within 10 crater diameters from the crater rim. Answer - (a) Within 1 crater
diameter from the crater rim.
Why is the surface of some of the largest lunar impact craters (basins) black
and smooth?
(a) They are in shadow.
(b) They are covered with mare (lava).
(c) They are covered with impact melts.
(d) The impact exposed the darker colored lunar mantle. Answer - (b) They are
covered with mare (lava).
Where is the easiest place to find meteorites (if you can get there)?
(a) Antarctica
(b) Australia
(c) Sahara Desert
(d) Northern Canada Answer - (a) Antarctica
COMPLETE SOLUTION.
When gas comes off of a comet, which direction does it head to form the gas
tail?
(a) Away from the Sun
(b) Away from the direction the comet is traveling
(c) Away from Sun and away from the direction that the comet is traveling
(d) Toward the Sun and toward the direction that the comet is traveling
Answer - (a) Away from the Sun
Why is Haley's comet the most famous of all comets?
(a) It is the only comet visible to the naked eye that comes around about once
in a lifetime.
(b) It is the only comet to orbit the Sun inside of Jupiter's orbit.
(c) It has the longest tail of any comet viewed from Earth.
(d) All of the above Answer - (a) It is the only comet visible to the naked eye
that comes around about once in a lifetime.
True or False. It is possible for a large solar flare to completely burn the surface
of the Earth.
(a) True
(b) False Answer - (b) False
,How was the Chicxulub Crater discovered?
(a) It is easily observed from space.
(b) Noticed changes in Earth's magnetic field.
(c) From ground-penetrating radar images that revealed a buried crater.
(d) Based on small observed changes in the Earth's gravity field. Answer - (d)
Based on small observed changes in the Earth's gravity field.
Which is NOT evidence that a large impact killed off the dinosaurs?
(a) An abundance of Iridium found at the Cretaceous-Paleogene boundary.
(b) Fossilized dinosaur bones showing burns.
(c) Shocked quartz found at the Cretaceous-Paleogene boundary.
(d) The Chicxulub Crater is the right size and age. Answer - (b) Fossilized
dinosaur bones showing burns.
Who was the mascot used by the U.S. Forest Service to promote fighting all
forest fires that then led to a generation of massively destructive fires?
(a) Bullwinkle the Moose
(b) Mickey Mouse
(c) Smokey the Bear
(d) Rocky the Flying Squirrel Answer - (c) Smokey the Bear
True or False: If you combined all of the mass of the asteroid belt, it would add
up to a body bigger than the Moon.
(a) True
(b) False Answer - (b) False
On average, which is the closest planet to Earth?
, (a) Mercury
(b) Venus
(c) Mars
(d) Jupiter Answer - (a) Mercury
Where does most impact ejecta land (consider the ejecta blanket, not the
crater rays)?
(a) Within 1 crater diameter from the crater rim.
(b) Within 2 crater diameters from the crater rim.
(c) Within 5 crater diameters from the crater rim.
(d) Within 10 crater diameters from the crater rim. Answer - (a) Within 1 crater
diameter from the crater rim.
Why is the surface of some of the largest lunar impact craters (basins) black
and smooth?
(a) They are in shadow.
(b) They are covered with mare (lava).
(c) They are covered with impact melts.
(d) The impact exposed the darker colored lunar mantle. Answer - (b) They are
covered with mare (lava).
Where is the easiest place to find meteorites (if you can get there)?
(a) Antarctica
(b) Australia
(c) Sahara Desert
(d) Northern Canada Answer - (a) Antarctica
