(Q).
If normal human blood may become unbalanced if the rate of breathing is too fast or too slow, then what may become unbalanced if the rate of breathing is too fast or too slow? Answer choices: - normal eating - normal human blood - cigarettes - normal skin - Veins and arteries. - Chemical energy - kinetic energy - normal studying
(A).
normal human blood

(Q).
If gravity can cause an object to remain stationary, then what can cause an object to remain stationary? Answer choices: - travel - microscope - running - wind - sweating - cold air - gravity - motion
(A).
gravity

(Q).
If burning fossil fuels are used to produce electricity, then what are burned to produce electricity? Answer choices: - fossil fuels - organic molecules - kinetic energy - icicles - cigarettes - energy - glaciers - carbon dioxide
(A).
fossil fuels