Mouth or nose. Then goes into your trachea and into your lungs
Answer:
True
Explanation:
This would be like a birth to death ratio. If you have more deaths than births your population would decrease. See a similarity?
Chromatids......then chromosome !!!
Answer:
The ozone layer protects the Earth against most UVB coming from the sun. It is always important to protect oneself against UVB, even in the absence of ozone depletion, by wearing hats, sunglasses, and sunscreen. However, these precautions will become more important as ozone depletion worsens.
Explanation:
