Answer:
The lighter line increases O2 but the darker line increases even higher
Explanation:
Well they composed of three hydrogen. atoms and one Nitrogen. atoms. but 1 ammonia (NH3) molecule has 4 aton.One atom of nitrogen. and 3 atoms of hydrogen ...
Doctors would let your body's immune system fight off a bacterial infection. If the infection gets worse, then the doctors would proscribe you with some antibiotics so it'll fight off the harmful bacteria.
Sonar sends sound waves to the bottom that bounce back and tell the machine how far away the object is based on how long it takes for the sound wave took to come back.
They allowed scientists to study heredity and further develop it