Quiz 1 Question 1 10 / 10 pts Of the following, which is the best definition of sustainable development? Correct! improving people's lives in the present in a way that can continue far into the future. Sustainable development means meeting the needs of the present without compromising the ability of future generations to meet their own needs. Question 2 10 / 10 pts Which of the following is not a basic principle of science? Correct! All of the above are basic scientific principles. Right, all three are Basic Principles of Science - empiricism, parsimony, and proof is elusive. Question 3 10 / 10 pts In science, a theory is 2/5 Correct! an explanation supported by a substantial body of evidence. Question 4 10 / 10 pts The conservation of matter principle is that matter Correct! can neither be created or destroyed. Under ordinary circumstances, matter is neither created nor destroyed but rather is recycled over and over again. Question 5 10 / 10 pts Environmental science, as a science discipline, includes which of the folliowing (check all that apply): Correct! Ecology 3/5 Correct! Correct! Chemistry Engineering While solving environmental problems can potentially include input from all of these disciplines, only some of them are dedicated to the traditional scientific method (Ecology, Chemistry, Engineering, etc.). Question 6 10 / 10 pts You dissolve 1.2 kilograms of salt into 3500 liters of water. What is the resulting salt concentration in that water in units of milligrams per liter (mg/L)? Note: just enter the numeric value; do not include the mg/L units in your answer because Canvas doesn't understand units. Correct! orrect Answers 342 340 (with margin: 5)

Concentration is defined as the mass of contaminant (in this case salt) per volume of water. First, you need to convert from kg of salt to mg of salt:

(1.2kg)(1,000,000 mg/1 kg) = 1,200,000 mg salt

Now divide the mass of salt by the volume of water:

1,200,000 mg salt/3500 L water = 340 mg salt/L water

5/5