18 B 19 C and 20 A
cuz that's it I hope it helps you
I dont know anything about this since i am not in college or high school i am in Middle school but I hope I will learn it
Answer: option B. Hydrogen
Explanation:
Answer:
It is important to analyze data to further understand what's going on. By analyzing data, you know more about what you are investigating. Without analyzing data, you may find it harder to figure something.
