__________13. Near the ceiling of a room the air is warmer. The warm air rises because of...
a. conduction c. radiation
b. convection d. none of these
__________14. The rubber or plastic on electrical cords is an example of_______.
a. insulators c. conductors
b. radiators d. convectors
__________15. What is the food to feed the fire?
a. Nitrogen c. Oxygen
b. Fuel d. Heat
a. conduction c. radiation
b. convection d. none of these
__________14. The rubber or plastic on electrical cords is an example of_______.
a. insulators c. conductors
b. radiators d. convectors
__________15. What is the food to feed the fire?
a. Nitrogen c. Oxygen
b. Fuel d. Heat
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Answer:
1 C
2 D
3 B
Explanation:
Tama po yan kase ayan tinuro ng teacher namin