Where are the answers that apply .. hopes this help :)
Hi!
You would not want to use a stopper when<span> combining two unknown substances because the gasses made from the combination could end up creating to much pressure and explode.</span>
Answer: True
Explanation: They are formed by the cooling and hardening of molten magma
To be honest, I can’t really see the question. So please next time just type it out lol