Question 1

The four inner planets are small,close together,near the Sun,and rocky.

Accepted Answer

A) True 
 B)False

Question 2

The amount of energy needed to break up an asteroid is much less than the amount of energy required to scatter all of its fragments.

Accepted Answer

A) True 
 B)False

Question 3

Possible causes of mass extinctions include ___________________.

Accepted Answer

A)  the longer lasting and far-reaching effects of plate tectonics and of voluminous volcanic outpourings 
B)  biological processes 
C)  climate changes 
D)  asteroid and comet impacts 
E)  all of these are correct. 
A)  the longer lasting and far-reaching effects of plate tectonics and of voluminous volcanic outpourings 
B)  biological processes 
C)  climate changes 
D)  asteroid and comet impacts 
E)  all of these are correct.

Question 4

When the north magnetic pole was discovered in 1831 its position was in Nunavut Territory (Canada).

Accepted Answer

A) True 
 B)False

Question 5

The Tunguska,Siberia,mid-air explosion in 1908 excavated a large simple crater.

Accepted Answer

A) True 
 B)False

Question 6

The closer a comet gets to the Sun,the smaller its tail becomes.

Accepted Answer

A) True 
 B)False

Question 7

Cosmic dust melts upon entry into the Earth's atmosphere because of friction.

Accepted Answer

A) True 
 B)False

Question 8

Coronal holes and mass ejections can be understood as:

Accepted Answer

A)  coronal holes: no ejections of plasma due to strong Sun's gravity;coronal mass ejections: gigantic clouds of plasma ejected from the Sun. 
B)  coronal holes: streams of plasma which are pulled toward the Sun's centre;coronal mass ejections: high-speed streams of hot gases. 
C)  coronal holes: high-speed streams of plasma released in space;coronal mass ejections: gigantic clouds of plasma released in space. 
D)  coronal holes: hot streams of gases released in space,captured by satellites as a hole;coronal mass ejections: high-speed streams of hot plasma,captured. 
E)  coronal holes: non active Sun's spots;coronal mass ejections: active Sun's spots. 
A)  coronal holes: no ejections of plasma due to strong Sun's gravity;coronal mass ejections: gigantic clouds of plasma ejected from the Sun. 
B)  coronal holes: streams of plasma which are pulled toward the Sun's centre;coronal mass ejections: high-speed streams of hot gases. 
C)  coronal holes: high-speed streams of plasma released in space;coronal mass ejections: gigantic clouds of plasma released in space. 
D)  coronal holes: hot streams of gases released in space,captured by satellites as a hole;coronal mass ejections: high-speed streams of hot plasma,captured. 
E)  coronal holes: non active Sun's spots;coronal mass ejections: active Sun's spots.

Question 9

When space debris blazes through the Earth's atmosphere as a streak of light or shooting star,they are referred to as a _________________.

Accepted Answer

A)  meteors 
B)  falling star 
C)  sunspot 
D)  moonlet 
E)  starlet 
A)  meteors 
B)  falling star 
C)  sunspot 
D)  moonlet 
E)  starlet

Question 10

Space debris that collides with the Earth comes primarily from fragmented asteroids and secondarily from comets.

Accepted Answer

A) True 
 B)False

Question 11

Meteorites that pass through the atmosphere and fall to Earth ______________.

Accepted Answer

A)  should not be touched soon after they hit the ground because they are blazing hot 
B)  kill on average one person every ten years 
C)  are slowed due to atmospheric friction and hit the ground at 320 to 640 km/h 
D)  are found mostly in the Canadian Arctic 
A)  should not be touched soon after they hit the ground because they are blazing hot 
B)  kill on average one person every ten years 
C)  are slowed due to atmospheric friction and hit the ground at 320 to 640 km/h 
D)  are found mostly in the Canadian Arctic

Question 12

Evidence for the impact that occurred near Chicxulub,Mexico,includes all but which of the following?

Accepted Answer

A)  Quartz grains with shocked crystal structures,indicating a short and violent impact 
B)  Iridium anomaly at roughly 100 sites worldwide in a thin layer of rock 65 million years old 
C)  Sand-sized spherules of minerals suggesting a melting and resolidification of rock 
D)  Large pieces of meteorite found in Mexico 
E)  The K/Pg boundary clays have a different composition from clays in the limestone layers above and below it;they might be explained by a mixture of one part asteroid to ten parts Earth crust 
A)  Quartz grains with shocked crystal structures,indicating a short and violent impact 
B)  Iridium anomaly at roughly 100 sites worldwide in a thin layer of rock 65 million years old 
C)  Sand-sized spherules of minerals suggesting a melting and resolidification of rock 
D)  Large pieces of meteorite found in Mexico 
E)  The K/Pg boundary clays have a different composition from clays in the limestone layers above and below it;they might be explained by a mixture of one part asteroid to ten parts Earth crust

Question 13

Asteroids are small bodies orbiting the Sun,which would likely have formed another planet if not for the gravitational pull of Jupiter.

Accepted Answer

A) True 
 B)False

Question 14

The Sudbury and Wanapitei craters formed as a double-impact site,like those of the Clear Lakes.

Accepted Answer

A) True 
 B)False

Question 15

The Earth's magnetic field resemble those of a giant bar magnet.

Accepted Answer

A) True 
 B)False

Question 16

The 1-cm-thick clay layer that marks the Cretaceous/Paleogene (K/Pg)boundary has a high percentage of the element ________ in the clay layer,an enrichment about 300 times greater than the normal abundance.

Accepted Answer

A)  iridium 
B)  silicon 
C)  iron 
D)  oxygen 
E)  krypton 
A)  iridium 
B)  silicon 
C)  iron 
D)  oxygen 
E)  krypton

Question 17

Magnetic storms ___________.

Accepted Answer

A)  are associated with sunspot activity 
B)  cause the magnetic North pole to wander 
C)  pull affect satellites out of orbit 
D)  pull asteroids out of orbit 
A)  are associated with sunspot activity 
B)  cause the magnetic North pole to wander 
C)  pull affect satellites out of orbit 
D)  pull asteroids out of orbit

Question 18

Which of the following Canadian impact crater is a simple crater?

Accepted Answer

A)  Eau Claire 
B)  Manicouagan 
C)  Pingualuit 
D)  Sudbury 
A)  Eau Claire 
B)  Manicouagan 
C)  Pingualuit 
D)  Sudbury

Question 19

Some asteroids are not solid bodies,but rather "rubble piles" held together by the mutual gravitational attraction of all the individual pieces.

Accepted Answer

A) True 
 B)False

Question 20

The Space Weather Network based in Canada's Arctic issues forecasts of geomagnetic activity.

Accepted Answer

A) True 
 B)False

The four inner planets are small,close together,near the Sun,and rocky.

The amount of energy needed to break up an asteroid is much less than the amount of energy required to scatter all of its fragments.

Possible causes of mass extinctions include ___________________.

When the north magnetic pole was discovered in 1831 its position was in Nunavut Territory (Canada).

The Tunguska,Siberia,mid-air explosion in 1908 excavated a large simple crater.

The closer a comet gets to the Sun,the smaller its tail becomes.

Cosmic dust melts upon entry into the Earth's atmosphere because of friction.

Coronal holes and mass ejections can be understood as:

When space debris blazes through the Earth's atmosphere as a streak of light or shooting star,they are referred to as a _________________.

Space debris that collides with the Earth comes primarily from fragmented asteroids and secondarily from comets.

Meteorites that pass through the atmosphere and fall to Earth ______________.

Evidence for the impact that occurred near Chicxulub,Mexico,includes all but which of the following?

Asteroids are small bodies orbiting the Sun,which would likely have formed another planet if not for the gravitational pull of Jupiter.

The Sudbury and Wanapitei craters formed as a double-impact site,like those of the Clear Lakes.

The Earth's magnetic field resemble those of a giant bar magnet.

The 1-cm-thick clay layer that marks the Cretaceous/Paleogene (K/Pg)boundary has a high percentage of the element ________ in the clay layer,an enrichment about 300 times greater than the normal abundance.

Magnetic storms ___________.

Which of the following Canadian impact crater is a simple crater?

Some asteroids are not solid bodies,but rather "rubble piles" held together by the mutual gravitational attraction of all the individual pieces.

The Space Weather Network based in Canada's Arctic issues forecasts of geomagnetic activity.

A Global and Canadian Outlook on Natural Disasters

Earths Internal Energy and Plate Tectonics

Earthquake Geology, Seismology, and Engineering

When the Earth Shakes in Canada

Volcanic Eruptions and Landforms

Volcano Case Histories : Killer Events

Tsunamis

The Ever Changing Climate

Severe Weather

Hurricanes

Floods

Fire

Mass Movements and Snow Avalanches

Filters

Exam 14: Hazards From Space

The four inner planets are small,close together,near the Sun,and rocky.

The amount of energy needed to break up an asteroid is much less than the amount of energy required to scatter all of its fragments.

Possible causes of mass extinctions include ___________________.

When the north magnetic pole was discovered in 1831 its position was in Nunavut Territory (Canada).

The Tunguska,Siberia,mid-air explosion in 1908 excavated a large simple crater.

The closer a comet gets to the Sun,the smaller its tail becomes.

Cosmic dust melts upon entry into the Earth's atmosphere because of friction.

Coronal holes and mass ejections can be understood as:

When space debris blazes through the Earth's atmosphere as a streak of light or shooting star,they are referred to as a _________________.

Space debris that collides with the Earth comes primarily from fragmented asteroids and secondarily from comets.

Meteorites that pass through the atmosphere and fall to Earth ______________.

Evidence for the impact that occurred near Chicxulub,Mexico,includes all but which of the following?

Asteroids are small bodies orbiting the Sun,which would likely have formed another planet if not for the gravitational pull of Jupiter.

The Sudbury and Wanapitei craters formed as a double-impact site,like those of the Clear Lakes.

The Earth's magnetic field resemble those of a giant bar magnet.

The 1-cm-thick clay layer that marks the Cretaceous/Paleogene (K/Pg)boundary has a high percentage of the element ________ in the clay layer,an enrichment about 300 times greater than the normal abundance.

Magnetic storms ___________.

Which of the following Canadian impact crater is a simple crater?

Some asteroids are not solid bodies,but rather "rubble piles" held together by the mutual gravitational attraction of all the individual pieces.

The Space Weather Network based in Canada's Arctic issues forecasts of geomagnetic activity.

A Global and Canadian Outlook on Natural Disasters

Earths Internal Energy and Plate Tectonics

Earthquake Geology, Seismology, and Engineering

When the Earth Shakes in Canada

Volcanic Eruptions and Landforms

Volcano Case Histories : Killer Events

Tsunamis

The Ever Changing Climate

Severe Weather

Hurricanes

Floods

Fire

Mass Movements and Snow Avalanches

Filters