The exposed portion of the
continental crust underlying North America refers to Canadian Shield. The continental
crust is known as the North American Craton which consists of rocks from the
Archean dn Proterozoic eons and extends from Mexico to Greenland. Canadian
Shield also produces great resources that helped most humans for their economic
development. Because of the resources present in the Shield, it has a great
disadvantage to settlers. The primary obstacle to population growth in the area
is the presence of the bare rock, thin soils, muskeg and insects.
Answer: d. all of the above
Woodlands and forests are essential sources of food and shelter of both human and animals. With wildfire and forest destruction, such sources and even the very existence of varying species are significantly affected and devastated.
Answer:
The Tropic of Cancer borders the regions of <em>Mexico, the Bahamas, Egypt, Saudi Arabia, India and Southern China </em>while the Tropic of Capricorn borders the regions of <em>Australia, Chile, Southern Brazil and Northern South Africa.</em>
Explanation:
In order to learn more about the answer, let's consider describing what the Tropic of Cancer is and what the Tropic of Capricorn is.
Tropic of Cancer- This is also known as "Northern Tropic." It is said that at the time of its naming, the sun was positioned in the <em>Cancer constellation </em>(one of the constellations of the zodiac). It is located at 23.5 degrees north of the equator and runs through the regions mentioned above.
Tropic of Capricorn- This is also known as <em>"Southern Tropic."</em> It is said that at the time of its naming, the sun was positioned in the Capricorn constellation. It lies at 23.5 degrees south of the equator and runs through the regions mentioned above.
<u>Additional Information</u>
<u>Equator- </u>The imaginary line that divides the earth into the Northern and Southern Hemispheres.
Answer: They are younger than the Appalachian mountains
They are taller than the Appalachian mountains
Explanation:
The Appalachian mountains highest peak is about 6,684 feet while the Rocky mountains highest peak is 14,440 feet
The Appalachian mountains are 480 million years old while the Rocky mountains are only about 300 million years old