1. The earth’s history is measured in ________________ time.
2. The removal of rock particles by wind, water, and moving ice is _________________.
3. An ________________ is the largest division of geologic time.
4. The buildup of sediment at the mouth of a river is an example of _________________.
5. Past life forms preserved in rocks are called __________________.
6. Early in earth’s history, much of its surface was ______________________
(Choose one) solid rock; cool and dry;
mountainous; covered by an ocean
7. The longest division of geologic time is ___________________.
(Choose one) an era; an epoch; a period;
a generation
8. Fossils are most likely to be found in ___________________.
(Choose one) igneous rock; glacial ice;
sedimentary rock; loose sand
9. Which sequence shows the basic processes that change earth’s
surface?
(Choose one) erosion, deposition, weathering________
deposition, erosion, weathering________
weathering, erosion, deposition________
weathering, deposition, erosion ________
10. The fact that the same processes that shaped the earth are still
at work today illustrates
the principle of ____________________.
(Choose one) stratigraphy; relativity; uniformitarianism; sedimentation
11. Processes that tend to wear down and level the earth’s surface
are opposed by
processes that result in ___________________.
(Choose one) erosion; uplift; deposition; sedimentation
12. Changes in living things over time is called ____________________.
(Choose one) fossilization; petrification;
extinction; evolution
13. The ___________________ age of rock in one layer can be determined
by comparing
its position to that of rocks in
other layers.
(Choose one) relative; absolute; geologic; radiometric
14. The first and longest era of the earth’s history is the ______________________.
(Choose one) Paleozoic Era; Precambrian
Era; Cenozoic Era; Mesozoic Era
15. In which location is deposition most likely to occur? _______________________.
(Choose one) on a mountain top
at the mouth of a river
in the middle of a desert
on a steep hillside
16. The earth’s age is estimated to be ____________________ years.
17. One _______________ is the amount of time it takes the earth
to make one
revolution around the sun.
18. One ______________ is the amount of time it takes the earth to
make one
rotation on its axis.
19. The most important factors in determining climate are rainfall and ____________.
20. A break or interruption in the layering of rock can result in
the formation of an
_____________________
21. Radiometric dating is used to determine the ________________ age of rocks.
22. __________________ and epochs are divisions of eras.
23. Humans have been on earth for only a small part of the __________________
era.
24. The widespread appearance of new and different life forms marked
the beginning
of the _____________________ Era.
25. _____________________ is the buildup of eroded particles.
26. A canyon is produced by processes of _________________
CHAPTER 4 STUDY GUIDE (Answers)
1. The earth’s history is measured in __geologic___ time.
2. The removal of rock particles by wind, water, and moving ice is ___erosion___.
3. An ___era___ is the largest division of geologic time.
4. The buildup of sediment at the mouth of a river is an example of __deposition___.
5. Past life forms preserved in rocks are called __fossils__.
6. Early in earth’s history, much of its surface was ___covered
by an ocean___
(Choose one) solid rock; cool and dry;
mountainous; covered by an ocean
7. The longest division of geologic time is ____an era_____.
(Choose one) an era; an epoch; a period;
a generation
8. Fossils are most likely to be found in _sedimentary
rock_.
(Choose one) igneous rock; glacial ice;
sedimentary rock; loose sand
9. Which sequence shows the basic processes that change earth’s
surface?
(Choose one) erosion, deposition, weathering________
deposition, erosion, weathering________
weathering, erosion, deposition___X___
weathering, deposition, erosion ________
10. The fact that the same processes that shaped the earth are still
at work today illustrates
the principle of __uniformitarianism__.
(Choose one) stratigraphy; relativity; uniformitarianism; sedimentation
11. Processes that tend to wear down and level the earth’s surface
are opposed by
processes that result in __uplift___.
(Choose one) erosion; uplift; deposition; sedimentation
12. Changes in living things over time is called ____evolution____.
(Choose one) fossilization; petrification; extinction; evolution
13. The _____relative_____ age of rock in one layer
can be determined by comparing
its position to that of rocks in
other layers.
(Choose one) relative; absolute; geologic; radiometric
14. The first and longest era of the earth’s history is the ___Precambrian
Era___.
(Choose one) Paleozoic Era; Precambrian
Era; Cenozoic Era; Mesozoic Era
15. In which location is deposition most likely to occur? __at
the mouth of a river__.
(Choose one) on a mountain top
at the mouth of a river (X)
in the middle of a desert
on a steep hillside
16. The earth’s age is estimated to be ____4.6 billion___ years.
17. One ______year_____ is the amount of time it takes
the earth to make one
revolution around the sun.
18. One ______day_____ is the amount of time it takes
the earth to make one
rotation on its axis.
19. The most important factors in determining climate are rainfall and temperature_.
20. A break or interruption in the layering of rock can result in
the formation of an
____unconformity_____.
21. Radiometric dating is used to determine the ____absolute____ age of rocks.
22. _____Periods______ and epochs are divisions of eras.
23. Humans have been on earth for only a small part of the ______Cenozoic____
era.
24. The widespread appearance of new and different life forms marked
the beginning
of the _______Paleozoic_____
Era.
25. _____Deposition______ is the buildup of eroded particles.
26. A canyon is produced by processes of _____erosion_____
