Activity 3: Choose a practical unit for each of the following. Encircle the letter of your answer. 1. A very cold day 2. 5°C . 100'C 2. Weight of a book 2. 1 kg b. 10 kg c. 10 grams d. 100 mg 3. Boiling water a. 100 C b. 110°C c. 120°c d. 130°C 4. The height of the basket above the floor in basketball a. 48 in b. 3.3 ya. C. 2 mi d. 10 m 5. The length of a pen a. 19 cm 5. 19 mm c. 30 cm 6. A person's weight a. 50 g b. 50 mg c. 50 kg c. 60 € 7. The area of the tloor of a roon a. 24 km b. 24 m c. 24 mm d. 24 cm 8. Corner of a classroom a. 5 b. 10" d. 909 9. A very hot day $. 20°C a. -5°C 0.0.48°C c. 480 10. The height of a room b. 4mm a. 4 cm d. 4 km c. 4m c. 20