The mouth has a pH in the range of 6-7. If a sample of saliva were to be taken from the
mouth, how would it affect the color of
bromcresol green?

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

i wish i could but this one is weird give me abc and i can solve it.