1. Pick the term that best equates to the definition of the word "tactful." a. Aggresive b. Passive c. Diplomatic d. Submissive 2. Tom bought several parts for his motorcycle at the local auto store. He gave the cashier $100 and received $21.18 in change. How much did his parts cost? a. $68.82 b. $78.82 c. $100.18 d. $121.18 3. What is the purpose of a catalytic converter in an automobile? a. It helps reduce the car's emissions of carbon dioxide and other harmful gases. b. It helps start the car. c. It is a part of the combustion chamber. d. It is a part of the climate control system. 4. The short leg of a right triangle is 5 feet long. The long leg of the triangle is 10 feet long. According to the Pythagorean Theorem, which of the following is the length of the hypotenuse? a. 10 feet b. 11 feet c. 12 feet d. 13 feet 5. What is the cause of Earth's seasons? a. The distance from the Earth to the sun b. The temperature of the sun c. The location of the moon relative to the Earth d. The tilt of the Earth's axis 6. Dolphins are mammals. True False