The Central Lowlands have a width of about _ _ _ _ _ _ _ _ _ _ _ _ _ _ km.
The highest point in North America is _ _ _ _ _ _ _ _ _ _ _ _ _ _, Alaska.
The Central Lowlands are drained by the _ _ _ _ _ _ _ _ _ _ _ _ _ _ rivers, which flow into the Gulf of Mexico.
North America is joined to South America by a narrow stretch of land called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ are deep valleys with almost vertical sides carved out by rivers, famous examples include the Grand Canyon.
The _ _ _ _ _ _ _ _ _ _ _ _ _ _ is a native animal of the prairies, classified as ‘nearing extinction’.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ is the third largest continent in the world.
The continent of North America has been named after an Italian explorer, _ _ _ _ _ _ _ _ _ _ _ _ _ _, who reached this continent in the year 1507 CE.
The highest point in North America, Mt McKinley, was renamed _ _ _ _ _ _ _ _ _ _ _ _ _ _ in 2015.
The 49° N latitude marks the boundary between _ _ _ _ _ _ _ _ _ _ _ _ _ _ and the USA.
The Grand Canyon of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ River is world-famous for its beauty and majesty.
The average height of the Appalachian Mountains is _ _ _ _ _ _ _ _ _ _ _ _ _ _ m.
Today, geothermal, wind, solar, and _ _ _ _ _ _ _ _ _ _ _ _ _ _ power have been largely developed as new sources of energy in North America.
The Western Mountain System forms part of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ due to its proximity to the Pacific Coast.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ is the cutting down of trees and the processes leading to the manufacture of products such as paper, newsprint, and synthetic fibres.
The five lakes that make up the Great Lakes are Lake Huron, Lake Ontario, Lake Michigan, Lake Erie and _ _ _ _ _ _ _ _ _ _ _ _ _ _.
The edge of the Piedmont Plateau, where rivers descend to the eastern coastal plains in a series of waterfalls, is referred to as the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ was a Spanish explorer known for being the first European to lead an expedition across the Isthmus of Panama and discover the Pacific Ocean.
The tropical islands of the Caribbean Sea are collectively called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
The Canadian or Laurentian Shield is composed of some of the oldest known hard rocks that are rich in minerals like _ _ _ _ _ _ _ _ _ _ _ _ _ _ and _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Canada is the largest producer of _ _ _ _ _ _ _ _ _ _ _ _ _ _ in the world.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ are the people who use saws and axes to cut tree trunks into lengths measuring 1 m to 5 m.
The _ _ _ _ _ _ _ _ _ _ _ _ _ _ Current in the north-west keeps the coastal parts of Alaska frost-free even in winter.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ trees have needle-like leaves and appear green at all times, yielding softwood.
In the north-west, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ separates Asia from North America.
The flora of the Mediterranean vegetation region is adapted to withstand _ _ _ _ _ _ _ _ _ _ _ _ _ _ conditions.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ are the lumberjacks who climb tall coniferous trees to cut off branches and the trunk.
Large deposits of high-grade bituminous and anthracite coal are mainly found in the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
The subsoil in the _ _ _ _ _ _ _ _ _ _ _ _ _ _ vegetation zone remains frozen throughout the year.
_ _ _ _ _ _ _ _ _ _ _ _ _ _, which is geographically a part of North America, belongs to Denmark and is the largest island in the world.
In Canada, lumbering is an important economic activity in the _ _ _ _ _ _ _ _ _ _ _ _ _ _ or taiga forests.
The Tropic of Cancer passes through _ _ _ _ _ _ _ _ _ _ _ _ _ _, which is a large country in North America.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ trees have broad leaves and shed them once a year in the dry season.
The main regions for lumbering in Canada are the provinces of _ _ _ _ _ _ _ _ _ _ _ _ _ _, Quebec and Ontario.
The mixing of the cold Labrador Current and the warm Gulf Stream off the coast of Newfoundland creates one of the richest _ _ _ _ _ _ _ _ _ _ _ _ _ _ in the world.
Christopher Columbus is considered to have discovered North America in _ _ _ _ _ _ _ _ _ _ _ _ _ _ CE.
Places close to the sea in North America have a _ _ _ _ _ _ _ _ _ _ _ _ _ _ range of temperature and experience maritime climate.
North America is a major producer of _ _ _ _ _ _ _ _ _ _ _ _ _ _, coal, copper, nickel, zinc, gold, silver, petroleum, and natural gas.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ collect and drag logs to stack them along a frozen river bank, road, or railway line.
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