Great Lakes

A  Niagara Falls will erode back into Lake Erie, causing the levels of the lakes to drastically fall.

B  Niagara Falls will migrate to Lake Huron and cause Lake Erie and Huron to become one giant lake.

C  Niagara Falls will erode back to Lake Erie and the other lakes will rise by over 180 ft.

D  Niagara Falls will migrate to Lake Ontario and cause Lake Erie to rise as Lake Ontario flows into it.

A  The land surface rises an inch each year.

B  The land surface rises 10 inches each year.

C  The land surface rises 5 feet each year.

D  The land surface rises a foot each year.

E  The land surface rises 3 inches each year.

A  180 feet

B  1000 feet

C  3600 feet

D  1800 feet

E  18 feet

A  It refroze into smaller glaciers in Minnesota.

B  The excess water in the Great Lakes retreated through an underground tunnel to the Mississippi River.

C  The excess water in the Great Lakes retreated through an ancient river system and to the sea.

A  Basalt is a glacier deposit showing that the Great Lakes formed due to glaciers.

B  Basalt is an igneous rock—meaning that it formed from magma. This means that the Great Lakes formed due to volcanoes.

C  Basalt is an igneous rock that can only be created with intense volcanic activity, therefore it was discovered that a large rift formed here in the past causing the great depth of Lake Superior.

A  3 ice sheets

B  20 ice sheets

C  10 ice sheets

D  1 ice sheet

E  5 ice sheets

A  Each drumlin faces the opposite direction, revealing that many giant forces formed them all most likely many glaciers

B  Each drumlin faces the same direction, revealing that the same giant force formed them all most likely the glaciers

C  The drumlins that a volcanic eruption blasted the surface causing conditions to cool and resulting the glaciers forming

A  1 ft/ year (making them actually 35,000 years old).

B  2 ft/ year (making them actually 24,000 years old).

C  3 ft/ year (making them actually 12,000 years old).

D  5 ft/ year (making them actually 5,000 years old).

A  He believed the falls were receding at 5 ft/year

B  He believed the falls were receding at 2 ft/year

C  He believed the falls were receding at 10 ft/year

D  He believed the falls were receding at 1 ft/ a year

A  Clyde Simmons

B  Charles Lyell

C  Charles Darwin

D  James Hutton

E  Alfred Wallace

A  Slightly harder

B  Much harder

C  Much softer

D  Slightly softer

A  Deposition of shells

B  Recrystallization

C  Mud that mixes with shells

D  Magma cooling

A  South of the equator in tropical conditions—we know this from the coral reefs studied.

B  North of the equator in tropical conditions—we know this from the warm water clams studied.

C  South of the equator in temperate conditions—we know this from the cold water clams studied.

D  South of the North Pole—we know this from polar bear tracks.

A  They are 20% of the world’s freshwater and 80% of America’s drinking water.

B  They are 10% of the world’s freshwater and 50% of America’s drinking water.

C  They are 20% of the world’s freshwater and 10% of America’s drinking water.

D  They are 30% of the world’s freshwater and 20% of America’s drinking water.