E.2.2 - Earth's History II

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Which type of rock makes up about 75% of the rocks on Earth’s surface? *

1 point

a. younger

b. strike slip

c. sedimentary

d. older

e. metamorphic

f. igneous

g. fault

h. dip slip

Are igneous rocks older or younger than the rock it cuts? *

1 point

a. younger

b. strike slip

c. sedimentary

d. older

e. metamorphic

f. igneous

g. fault

h. dip slip

What type of fault is two pieces of land changing horizontal positions? *

1 point

a. younger

b. strike slip

c. sedimentary

d. older

e. metamorphic

f. igneous

g. fault

h. dip slip

Which type of rock disturbs sedimentary rock layers? *

1 point

a. younger

b. strike slip

c. sedimentary

d. older

e. metamorphic

f. igneous

g. fault

h. dip slip

What type of fault is two pieces of land changing vertical positions? *

1 point

a. younger

b. strike slip

c. sedimentary

d. older

e. metamorphic

f. igneous

g. fault

h. dip slip

What is it called when there is movement of tectonic plates? *

1 point

a. younger

b. strike slip

c. sedimentary

d. older

e. metamorphic

f. igneous

g. fault

h. dip slip

How do scientists know that some mountains were once at the bottom of an ocean?

1 point

a. Freshwater rivers flow to the ocean.

b. Saltwater fish are found in some mountain streams.

c. Dinosaur bones have been discovered in the mountains.

d. Marine fossils have been found on the peaks of some mountains.

Clear selection

What do earthquakes tell scientists about the history of the planet?

1 point

a. Earth’s climate is constantly changing.

b. The continents of Earth are continually moving.

c. Dinosaurs became extinct about 65 million years ago.

d. The oceans are much deeper today than millions years ago.

Clear selection

Which best describes how ice cores are important to the study of geologic history?

1 point

a. They show unconformities, which signal changes in deposition.

b. They hold index fossils, which are used to date the different ice cores.

c. They contain evidence showing changes in the atmospheric composition over time.

d. They follow the Law of Superposition, which gives reasons for extinctions of species.

Clear selection

Which best describes uniformitarianism?

1 point

a. The time it takes for erosion to occur has changed since Earth first formed.

b. The movement of the continents no longer occurs because of changes in ocean currents.

c. The processes that shape the Earth continue as they have since the Earth formed.

d. The formation of rock layers has slowed because humans have altered the environment.

Clear selection

Which allows scientists to investigate what Earth’s climate was like over the past 740,000 years?

1 point

a. volcanic deposits

b. fossils

c. faults

d. ice cores

Clear selection

Which is the best reason for scientists to study ice cores obtained from Earth’s ice caps?

1 point

a. to evaluate potential oil drilling sites

b. to study the quality of water stored in glaciers

c. to determine the rate of melting in polar regions

d. to study past climates by analyzing trapped gases and particles

Clear selection

Which supports the theory that some mountains were once at the bottom of an ocean?

1 point

a. There are underwater mountains on the ocean floor today.

b. Freshwater rivers flow to the ocean.

c. Fossils of marine organisms are found on the tops of some mountains.

d. Both mountains and ocean floors have similar minerals in their rocks.

Clear selection

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