Answer:
How can I tell if a chemical reaction is occurring? A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change.
Explanation:
Answer:
B I believe im sorry if it's not right
Answer:
moon
Explanation:
the moon's gravitational pull generates tidal force which affects earth's tides
Because they can't get trapped in.