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WorksheetsD.E. Unit 2.1-2.2 6th Grade
Total questions: 23
Worksheet time: 46mins
Which statement explains why iron is probably the most important mineral mined in the United States and Canada?
It is an important energy source for electric and battery powered devices.
It is used in the construction of a variety of human-made structures.
It is a precious metal frequently used in fine jewelry.
It is used to power factories and other large businesses.
Large-scale agriculture is characterized by:
Produce more than enough to feed an entire family
The use of machinery
Planting a single crop across huge plots
The use of chemical fertilizers
Which statement best explains why adobe structures were well suited for the Southwest?
They withstood the effects of the region's tornadoes
Their inside space was needed for drying fish caught from the area's rivers
They were easy to disassemble and relocate
Their interiors remained cool in daylight hours and warm at night
Dams built on the Colorado River in seven U.S. states have had what effect?
They have created a cooperative working relationship among states, so federal government intervention is not needed to ensure fair water distribution
They have satisfied most of these states needs for electric power
They have enriched the river water with nutrients and a variety of new species of fish
They have reduced the river's forces to almost nothing by the time it finally empties into the sea
Which statement best explains how residents of the U.S. Gulf Coast have adapted to their environment to deal with the risk of hurricane flooding?
They have planted trees with strong, deep roots.
They have built their homes with large basements.
They have built sturdy homes made of brick, steel, and concrete.
They have constructed tall, wide river levees.
One main difference between the indigenous peoples of the Northeast and those who lived in the Southwest of the United States and Canada was that:
only people in the Northeast lived in permanent dwellings
only people in the Southwest made their homes from adobe
only people in the Southwest grew corn, beans, and squash
only people in the Northeast hunted animals for food
Which statement best explains the origins of fossil fuels?
There were formed over ages from lava deep inside the earth.
They were formed over millions of years from dead plants and animals
They are produced by living shrubs and other vegetation.
They are produced when the earth's temperature cools.
By the 1970's; the Chesaspeake Bay suffered from:
Death of wildlife, and a collapsed fishing industry
Declining public taste for fresh seafood
Lack of residential and commercial development in its basin
Extreme environmental over-protection from the government
Air conditioning began improving the lives of Phoenix residents in roughly which decade?
1950's
1910's
1990's
1870's
What is the prime source of acid rain?
Byproducts of coal-burning power plants and factories
Water pollution in large lakes and rivers
Exhaust fumes from congested automobile traffic
Animal waste from livestock
Which goals do the U.S. and Canadian national parks systems share?
To protect lumber reserves for future logging
To provide living space and hunting grounds for indigenous peoples
To increase government revenues by collecting user fees from vacationers
To preserve ecosystems for endangered plant and animal species
Which factor most contributed to the settlement of Phoenix, Arizona, in the early 1900's?
The intersection of two important rivers at the center of the city
The construction of dams in nearby rivers, which provided water for agriculture
The existing rail systems, which provided easier access to the West Coast
The discovery of irrigation techniques left behind by indigenous inhabitants
Which statement best describes how summer affected food gathering for indigenous Arctic people?
The break from ice fishing forced them to relearn food-gathering techniques.
The increased sunshine meant more plants could complement a diet of fish and meat
The long hours of daylight often caused fisherman to stay out too long, leading to undernourishment for their families.
The hunting of walruses and reindeer dropped considerably.
The discovery of the Ogallala Aquifer helped facilitate which shift in the United States?
The emergencies of large cities in desert areas of the Southwest
A population migration from the Great Plains to Pacific coastal areas
An effort by dairy farmers in the Midwest to expand ther output of milk and cheese products
The change from cattle grazing to large scale growing of corn and soybeans in the Great Plains
Which statement best explains how the timber industry in the United States and Canada has changed over the past 300 years?
It has evolved as the uses for the timber has become more varied
It has increased in significance because trees are used more than ever for construction
It has declined because the digital era has resulted in decreased paper use
It has become unimportant because the use of wood in home building has almost disappeared
Which statement best describes the relationship between resources and development in the United States and Canada?
Because it has a smaller population, Canada has prospered more than the United States as a result of its abundant natural resources.
The presence of more nonrenewable than renewable resources has contributed to uneven economic growth in the United States.
Varied and plentiful natural resources have helped build strong economics in both countries.
In both countries, the need to import renewable natural resources has hampered economic growth
Montreal's construction of underground shopping plazas is an example of:
human migration
cultural diffusion
natural preservation
environmental adaption
A funnel shaped cloud on the Great Plains is likely to be:
fog
dust devil
hurricane
tornado
Which land form crosses the political boundary between he United States and Canada?
the Yukon Plateau
the Coast Mountains
the Sonoran Desert
the Rocky Mountains
Based on the map, the most important farming region in the United States is located:
near the Mexican border
in the Pacific Northwest
along the coast of the Gulf of Mexico
in the center of the country
Which type of vegetation is most common in the eastern United States?
temperate forest
tropical forest
tropical grassland
temperate grassland
Which statement best compares the climates of the united States and Canada?
Canada's climate is more affected b the oceans than is the climate of the United States.
The climate of Canada is cooler and less varied than that of the United States.
The climates of eastern Canada and the eastern United States are very similar.
Overall, the United States is much drier than Canada.
A trip by water from New York to Ottawa would require travelers to sail:
north in the Atlantic Ocean to the Gulf of Saint Lawrence and the Saint Lawrence River
south in the Atlantic Ocean to the Gulf of Mexico
north in the Atlantic Ocean to the Labrador Sea and the Hudson Bay
south in the Atlantic Ocean to the Caribbean Sea
