![]()
A) Mining for minerals B) Clearcutting forests C) Building permanent roads D) Developing urban cities
A) Late 18th century B) Early 17th century C) Mid 19th century D) Early 20th century
A) Over-grazing by livestock B) High levels of rainfall C) Natural erosion from wind D) Deeper freezing of cleared soils
A) To prevent soil flooding B) To create borders for property C) They were littering the tilled land D) To use them for house foundations
A) 1725 to 1775 B) 1775 to 1825 C) 1620 to 1670 D) 1875 to 1925
A) 380,000 B) 240,000 C) 40,000 D) 500,000
A) 60 million B) 40 million C) 20 million D) 10 million
A) They reforested B) They became paved suburban zones C) They were converted to desert D) They became industrial centers
A) 4 feet in diameter B) 6 feet in diameter C) 1 foot in diameter D) 2 feet in diameter
A) Failing to meet structural standards B) Underused C) Extensively popular D) Prohibited by law
A) They are lightweight B) They are perfectly square C) They are pretty and colorful D) They are fireproof
A) Construction of new roads B) New mining operations C) Heavy floods moving rocks D) Plowing fields after the winter freeze
A) Exclusively in river beds B) Deep within subterranean caves C) At or near the Earth's surface D) In man-made mining quarries
A) Glacial erratics B) Clearance cairns C) Terminal moraines D) Subsoil deposits
A) Volcanic activity B) Glacial deposition C) Ocean sediment accumulation D) Tectonic plate shifts
A) Glacial erratics B) Ablation layers C) Terminal moraines D) Lodgment till
A) Wisconsin Ice Sheet B) Laurentide Ice Sheet C) Upper Midwest Glacier D) New England Ice Sheet
A) Glacial erratics B) Terminal moraines C) Ablation drifts D) Clearance cairns
A) By steam-powered machinery B) Using hydraulic lifts C) By animal-drawn plows D) Exclusively by hand
A) Earth harvester B) Stone crusher C) Soil drill D) Rock picker
A) Tilling the soil for planting B) Measuring soil acidity C) Picking surface rocks from the soil D) Watering the crops
A) Volcanic vents B) Underwater dredging C) Topsoil or subsoil D) Deep underground mines |