The is unhealthy and can kill people if it only has <span>oxygen, and hydrogen. that is very unhealthy to consume other than when you breath
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Answer:
Girls have menstrual cycles because girls have changes of hormones in their body. The hormones make the lining of the uterus build up. This gets the uterus ready for an egg which when the egg is released it causes a period also known as a menstrual cycle which happens normally every month for at least 3-7 days.
Explanation:
Answer: the antigens identify the foreign invader
Answer:
Sending mean texts or DMs to someone.
Pranking someone's phone.
Hacking into someone's gaming or social networking profile.
Being rude or mean to someone in an online game.
Spreading secrets or rumours about people online.
Pretending to be someone else to spread hurtful messages online.
Explanation:
Hope this helps :)
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