Answer: Sharp spines and waxy stems
I think you forgot to give the choices along with your question. I am answering the question based on my research and knowledge. "Helium effuses 0.71 times faster than hydrogen" is the statement that <span>holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams. I hope the answer has helped you.</span>
I think you might find your answer here https://answers.yahoo.com/question/index?qid=20121101101721AAeZyHE
Answer:about 2 grams of methane
Explanation:
idk just got this right
Answer:
Waves carry energy from place to place.
Explanation:
Some waves are used for mainly communication and phone signals. They help people get internet in the middle of nowhere if you are near an energy wave.
