Answer:
means "approximately", "about", or "around", such as "~30 minutes before", meaning "approximately 30 minutes before".
Answer:
Organic compounds contain carbon and hydrogen (which may be replaced by other atoms).
I think its a deeper current probably..
I hope this helps<span />
<span>When
a plant opens and closes its stomata, it is maintaining its respiration and
helps the Earth’s breathable atmosphere. Stomata (stoma) by dictionary
definition is a small opening on a plants’ epidermis (mostly on leaves) with
which gas exchange happens, carbon dioxide in, oxygen out.</span>
