Answer:
the skin,hair,naios,glands and nerves
This would be an example of the symbiotic relationship mutualism because both organisms benefit and neither are harmed
2 strands of DNA=hydrogen bonds
2water molecules=polar convalent bonds
NACL=ionic bond
H2=ionic
The answer is A. Decreased pH levels. A substance having a pH value less than seven is considered to be acidic. Increases in the concentration of these gases from the use of fossil fuels leads to more acid precipitation, lowering the pH of aquatic environments. Plant life and soil can also be affected by acid rain. Buildings and other infrastructure can be damaged.
