1. What is a form of energy that can be transferred from one object to another?
A heat
B.themometer
C barometer
D. temperature
2. What gas is used by animals and plants in their respiration (breathing) process?
А. oxygen
B carton
C nitrogen
D. helium
3. What materials contain a substance that cannot be broken down or decayed?
A non-biodegradable B. biodegradable C paper
D. chemical

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