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.

In lumbering, the riskiest work of climbing tall trees to cut their branches is done by the …………… .

1. sawyers
2. haulers
3. high riggers
4. skidders

Two statements are given in the question below as Assertion (A) and Reason (R). Read the statement and choose the appropriate option:

Assertion (A): Lumbering is the most common occupation in Canada.

Reason (R): Coniferous forests occupy 60 per cent of the total land area of the country.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true and (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false and (R) is true.