Answer:
B. Element
Explanation:
Tungsten is an chemical element
There is no Bo element, however there is a B element which is Boron
A should be the answer because the more you test an experiment the more data you have to rely on changing the experiment would cause you to have different outcomes making the results different and unreliable so B, C, and D is not going to be the answer Hope this helps
Answer:
sun
Explanation:
because all plants use energy from the sun to make food and grow
The 02 is a solid. I hope thus helped you :)