Explanation:
Between 15,000 and 25,000 years ago.
Answer:
A. It has lost one electron
Explanation:
Since the H has been replaced by a +, this means that the Hydrogen is now a positive ion. For this to happen, it would have to lose an electron.
Gaining one would make it <em>negative</em>, and protons cannot be gained or lost under normal circumstances.
It basically means a superficial wound :)
Answer:
plant produces oxygen that is option a
