chapter 6

The large, roughly circular, dark, and somewhat younger regions on the Moon are called: A) highlands B) maria C) rilles D) anti-cyclones

B) maria

Which type of light do greenhouse gasses in Earth's atmosphere absorb the most? A) Infrared B) Visible C) Ultraviolet

A) Infrared

If Earth's atmosphere were able to completely absorb visible light, which of the following would be true? A) The Earth's surface temperature would be cooler than it is today. B) The Earth's surface temperature would be warmer than it is today. C) The Earth's surface temperature would be the same temperature as it is today. D) There is not enough information to answer this question

A) The Earth's surface temperature would be cooler than it is today.

Which of the following is a way that the planet Mercury is similar to the Moon? A) its surface is heavily cratered B) it has a significant atmosphere C) the highest temperature on the two worlds is the same D) the time they take to spin once on their axis is the same

A) its surface is heavily cratered

The region around the Earth where charged particles are trapped, and spiral around is called: A) the magnetosphere B) the atmosphere C) the mantle D) the spirosphere

A) the magnetosphere

The average temperature on planet Earth is higher than you would expect just from the heating of sunlight alone. What is the explanation for this? A) solid material hitting the Earth from space heats it up B) carbon dioxide (and other gases) in the atmosphere cause a green house effect C) the rubbing of the continental plates warms up the Earth's surface D) the heat given off by living things makes our planet warmer E) we have no explanation for this higher temperature and that has scientists worried

B) carbon dioxide (and other gases) in the atmosphere cause a green house effect

Volcanoes are usually found in places where, A) the low pressure of the atmosphere pulls the lava/magma to the surface. B) earthquakes occur from oceanic plates colliding with continental plates. C) deep-rooted mountains have cracked Earth's crust. D) Earth's rotation has caused weak spots in its crust.

B) earthquakes occur from oceanic plates colliding with continental plates.

The change in position of the continents over time is primarily caused by A) continental plates floating on the ocean. B) mantle material circulating inside Earth. C) Earth's slowly shrinking as it cools. D) global wind patterns and sustained ocean currents.

B) mantle material circulating inside Earth.

Where has frozen water has been discovered on the Moon? A) At the bottom of all the craters we see on the side facing us B) In the highlands, but only on the side of the Moon facing away from Earth C) Deep inside craters in the regions near the Moon's poles D) In the maria, regions of the Moon that are water filled seas E) You can't fool me, no water has ever been found on the Moon in any form

C) Deep inside craters in the regions near the Moon's poles

What is the source of the fine, powdery dust found on the Moon's surface? A) it is sand, produced in exactly the same way sand is produced on the Earth's beaches B) it is the result of volcanic activity on the Moon over billions of years C) it is the result of many impacts, breaking surface rocks apart over billions of years D) it is the result of gas bubbling up from inside the Moon, which chemically changes the surface soil

C) it is the result of many impacts, breaking surface rocks apart over billions of years

The largest part of the Earth is its A) oceanic crust B) continental crust C) mantle D) core E) atmosphere

C) mantle

Which of the following statements about our Moon is FALSE? A) its average density is less than that of the Earth (it seems to have fewer heavy materials) B) most of what we know about its geology is the result of the Apollo landings C) on Earth, we can see all its sides in the course of a month as it goes around us D) its mass is less than that of the Earth E) it has no real atmosphere to speak of

C) on Earth, we can see all its sides in the course of a month as it goes around us

Rocks that have not been chemically modified by being significantly heated are called A) sedimentary B) metamorphic C) primitive D) igneous

C) primitive

An increase in the Earth's temperature by several degrees Celsius would result in: A) a huge increase in the rate of motion of the continental plates and far more earthquakes B) an increase in the Earth's magnetism, increasing the size of the VanAllen belts C) the melting of many glaciers, a rise in sea levels, and more flooding of towns near the coasts of the continents D) a new ice age E) the Moon coming closer to the Earth

C) the melting of many glaciers, a rise in sea levels, and more flooding of towns near the coasts of the continents

The first human being to step out onto the surface of another world was: A) Luke Skywalker B) Jack Schmitt C) James Van Allen D) Neil Armstrong E) Yuri Gagarin

D) Neil Armstrong

These days the theory of the Earth's Moon's origin that best fits with the facts we have about the Moon is: A) the Moon came out of the Earth B) the Moon was formed in the same area of space and at the same time as the Earth C) the Moon was formed elsewhere and was later captured by the Earth D) a large object hit the Earth and the collision produced a filament of material that condensed to make the Moon

D) a large object hit the Earth and the collision produced a filament of material that condensed to make the Moon

Which of the following is a way we believe that the early atmosphere of the Earth differed from the atmosphere we have today? A) there was little if any free oxygen early on B) there was no ozone layer early on C) there was probably more carbon dioxide early on than there is today D) all of the above E) none of the above

D) all of the above

Which part of the Earth has the greatest density? A) oceanic crust B) continental crust C) mantle D) core

D) core

Which of the following statements about the Earth's magnetosphere is FALSE? A) it contains particles that come mainly from the solar wind B) it is generated by circulating liquid metal inside the Earth's core C) it extends into space over a region much bigger than the diameter of the Earth D) its shape and size are the same on the sides facing toward and away from the Sun

D) its shape and size are the same on the sides facing toward and away from the Sun

Which theory of the Moon's origin do astronomers (and the evidence) favor: A) the fission theory B) the sister theory C) the capture theory D) the giant impact theory

D) the giant impact theory

Which of the following is NOT a way that the planet Mercury is similar to the Moon? A) their surfaces are heavily cratered B) they both have no atmosphere C) they are believed to be formed as a result of an impact with a large object D) they both have eccentric orbits

D) they both have eccentric orbits

Earth's surface is primarily heated by which two forms of energy? A) Ultraviolet and visible B) Ultraviolet and infrared C) X -ray and ultraviolet D) Visible and radio E) Visible and infrared

E) Visible and infrared