The Supercontinent that disintegrated to form the present continents is known as

1. Gondwanaland.
2. Pangaea.
3. Panthalassa.
4. Laurasia.

North America lies between latitudes

1. 7°N-83°N
2. 7°S-83°S
3. 70°N-83°N
4. 20°N-80°N

Choose the incorrect statement about Western Cordilleras.

1. They are formed of the Andes, the Cascades and the Coastal Ranges.
2. They resemble the Himalayas as both are fold mountains.
3. Mt Mckinley is the highest peak here.
4. Volcanic activities threw up molten materials to form these gigantic mountains.

Which of the following sentences are true for the rivers of North America?

a. Mississippi, the largest river of the continent, drains into the Gulf of Mexico.
b. Columbia River forms the Grand Canyon.
c. St Lawrence river joins the five Great Lakes.
d. River Mackenzie is a west-flowing river in Canada.

Choose the right answer from the following:

1. a. and c. are correct.
2. a. and b. are correct.
3. c. and d. are correct.
4. b. and c. are correct.