What is meant by potable water?
a. Water fit for drinking
b. Water that must be boiled before drinking
c. Water that must be chlorinated before drinking
d. Water suitable only for use on lawns and gardens
e. Water to which fluoride has been added
Question 2
Which of the following is a characteristic of antibiotic use in livestock?
a. Development of antibiotic-resistant organisms is very rare.
b. Proper cooking of the meat destroys any traces of antibiotics.
c. Farmers use more than 5 times more antibiotic in livestock than physicians use in people.
d. Because the antibiotics have a short half-life, the FDA permits slaughter of the animals at any time.
e. There is no evidence of harm to the environment or human health from the use of antibiotics in livestock.
The discovery of aquaporins, water channels made of a transmembrane protein.
Water Gradient
Waves in Deep and Shallow Water
Surface Water Parsing
water bear
Running Water