81. The purpose of this passage is to ____.

1. explain why whale sharks are harmless to people
2. explain why whale sharks are fish instead of mammals
3. describe whale sharks
4. explain how divers should deal with whale sharks

82. According to the writer, most female sharks are ____.

1. larger than the males
2. more beautiful than the males
3. more dangerous than the males
4. smaller than the males

83. What is a predator?

1. A fish
2. A hunter
3. A mammal
4. A gentle giant

84. Which of the following is NOT true about whale sharks?

1. They use all 3 000 teeth.
2. They have mouths that can open up to four feet wide.
3. They cannot swallow a large amount of food.
4. They eat mostly plankton and krill.

85. If a scuba diver came across a whale shark, the whale shark would probably ____.

1. swim away
2. open its enormous mouth
3. keep its eye on the diver
4. pay no attention to the diver

(Reference keys.)