Cell, tissue, organ, organ sytem, organism, population, community, ecosystem, biome.
<span>The mechanical energy is conserved.
I hope this helps, good luck! :)</span>
The answer is Strontium(Sr)
Answer:
Yes
Explanation:
Friction is a force that opposes relative motion between systems in contact. One of the simpler characteristics of friction is that it is parallel to the contact surface between systems and always in a direction that opposes motion or attempted motion of the systems relative to each other.
