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1. TRUE (Black bears and grizzly bears are both found in North America, and, because they look quite similar to each other, are often confused)

2. FALSE (Part of the confusion arises out of the fact that both species are characterised by considerable colour variations)

3. FALSE (and there are also variationos in size and weight)

4. TRUE (Black bears are primarily adapted to forested areas...use of forested areas)

5. FALSE (Black bears have short, curved claws better suited to climbing trees than digging...burrowing rodents)

6. NOT GIVEN 

7. TRUE (Grizzly bears tend to be more carnivorous)

8. NOT GIVEN

9. climb trees (Black bears are generally...rely on their ability to climb trees to allow themselves and their cubs to escape predators...)

10. defensive attack (If you come within three to six...possible threat)

11. play dead (According to some experts, in this type of attack, you should play dead)

Bạn chụp phần còn lại của bài đọc để suy ra được đáp án của câu 12 và 13 nhé.