With 9, i took the answer choices but i need to be sure that they’re correct.

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b.they can have a lower impact on the environment. c.they can be used up rapidly. d.they can contribute to global warming.

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions