Answer: The different amount of lights in his classroom
Explanation:it would be the lights because the dependent ariable would be how sleepy his students who get or be
1. Both evaporation and condensation are steps in the water cycle.
2. Both are affected by atmospheric conditions.
Let me know how you did, good luck! :D
<span>A small proportion of helium in the crust is helium that was trapped in the Earth when the Earth formed and has not yet escaped. Most helium on Earth, however, forms as a result of alpha decay of uranium and thorium. The emitted alpha particles, once they grab a couple of stray electrons, become helium atoms and can accumulate in gas reservoirs along with things such as methane.</span>
Answer:
yes as you wish
Explanation:
but why have u asked this
