A.) Soil Fertility "Gradually Increase" <span>during the early years of primary succession</span>
You can only see it if you use a microscope and you cannot taste it or smell it
D. The petting animals option. Mainly because that answer has nothing to do with food and everything to do with regular germs :)
That is true according to the Yerkes-Dodson Law
Answer:
C, Eyewash
Explanation:
All the other devices are not made specifically to rid the body of potentially harmful things except eyewash, which is used to rid the eyes of contaminants.