Answer:
I believe methane is not a greenhouse gas.
Explanation:
Methane is indeed a fart.
Creative persistence is often useful when one is designing an experimental paradigm for example. It is useful tweaking different parameters of an idea which is much easier when one is creative - this is also at the core of scientific research very often.
I would have to say the second stage of life
A:acquiring energy
B:homeostasis
C:maintaining its structure
D:reproduction
Answer:reproduction
