Water vapor , you need a liquid to have acid rain-(rain is water btw)
Volume is the amount of space that a substance or object occupies while in a enclosed space. The units used are millimeters.
1. cellular respiration is a way plants get food at night
D, light can travel in the air or a vacuum and the speed is constant whether the light source is stationary or moving.
George is lifting weights. He starts by doing biceps curls
which involves flexing his
elbows. His elbow is able to bend
because the humero-ulnar joint is a hinge
joint. Sam is doing leg presses, extending his knees as he pushes
against the weights. Meanwhile, Jane is doing "lat pulls" by pulling
downward on a weighted bar. This movement involves adduction of her arms.
Her shoulder joint is a ball-and-socket joint, allowing
a wide range of movements.
