A synonym for observation could be remark.
C. <span>corpus phase.
This is how the phase is
</span><span>Menstrual phase (From day 1 to 5)
Follicular phase (From day 1 to 13)
Ovulation phase (Day 14)
<span>Luteal phase (From day 15 to 28)</span></span>
Answer:
We hear a lot about the amount of carbon in our atmosphere increasing, but the actual number of carbon atoms on our planet has not changed since the Earth first formed. It's just that more carbon is spending more time as gas.
Explanation: