Answer:
carbon
Explanation:
because it is an allotrope of carbon
Answer:
How does methane gas affect the environment?
If methane leaks into the air before being used — from a leaky pipe, for instance — it absorbs the sun's heat, warming the atmosphere. For this reason, it's considered a greenhouse gas, like carbon dioxide.
Explanation:
After 3 half-lives, 125 grams of the parent isotope will remain.
The anwser is atoms are destroyed
This sounds good so far.
May want to check how you say "and are spread way out" - a better way to say it would be "the crystals are spread out"