(Q).
Q: The nitrogen cycle includes air, soil, and what? Choices: - water - decomposers - heat - living things A:
(A).
living things

(Q).
Q: What does the slope of a position-time graph represent? Choices: - trajectory - direction - acceleration - velocity A:
(A).
velocity

(Q).
Q: Europa and titan are names of what kind of celestial objects? Choices: - galaxies - stars - asteroids - moons A:
(A).
moons