The difference between an environmentalist and an environmental

The difference between an environmentalist and an environmental scientist is: a. negligible because both care about Earth. b. that an environmentalist is involved in a social movement; whereas an environmental scientist is concerned with the methods of science. c. that an environmental scientist has a background in biology and chemistry; whereas, an environmentalist studies the humanities. d. an environmentalist is generally a radical. e. an environmentalist is involved in a social movement; whereas, an environmental scientist is concerned with politics.

Fifteen hundred acres is closest to _____ hectares. (1 hectare = 2. 47 acres) a. 300 b. 6000 c. 60 d. 3000 e. 600

Water is a good solvent. This statement explains which of the following phenomena? I. High concentrations of dissolved ions in seawater. II. Capacity of living organisms to store many types of molecules in solution in their cells. III. Easy transport of toxic substances through the environment. a. I only. b. II only c. I and II. d. I and III. e. I, II, and III.

Use Passage 1 -1. Several setups of each treatment are prepared to fulfill a very important requirement of scientific experimentation, specifically the need for a. replication. b. constants. c. a control. d. an independent variable. a dependent variable.

A dishwasher uses 700 watts each time it is run. The cycle takes one hour. It is run 150 times per year. How much energy can be saved in one year if the dishwasher is replaced by a more efficient model that uses only 500 watts each time it is run? Assume the frequency of use is the same. a. 30 MJ b. 30, 000 k. Wh c. 30, 000 J d. 30 k. Wh e. 45 k. Wh