(Q).
Q: What is caused by bodies sliding over rough surfaces? Choices: - heat loss - tension - vibration - friction A:
(A).
friction

(Q).
Q: The decay rate is measured in a unit called the what? Choices: - decay rate - exponential decay - radioactive decay - half-life A:
(A).
half-life

(Q).
Q: What does photosynthesis allow plants to generate? Choices: - enriched molecules - geometric molecules - clorophyll - organic molecules A:
(A).
organic molecules