Environmental Science HW 1

DDT is _____ -soluble so it accumulates in _____. a. fat... milk b. water... milk c. water... streams d. fat... streams e. water... oceans

fat... milk

A company that produces household cleaners decides to produce a "green" version of its products, even though the formulas are virtually unchanged compared to the original formulas. This is an example of _______.

greenwashing

A(n) (BLANK) is a testable statement that attempts to answer a scientific question.

hypothesis

Part complete Members of the _____ movement would be very concerned about the unequal exposure of members of a certain race to pollution.

Environmental justice

What is Earth's natural capital?

It is the accumulation of Earth's wealth of resources.

Which one of the following statements is true? a. DDT does not help prevent disease from passing from agricultural animals to humans. b. Cost was a major factor in the United States government's decision to ban DDT. c. Many African governments concluded that the potential long-term health effects of DDT were not as serious as the immediate problem of insect control. d. DDT cannot accumulate in the fat of animals. e. The DDT ban in the United States has made it very difficult to control agricultural insect pests.

Many African governments concluded that the potential long-term health effects of DDT were not as serious as the immediate problem of insect control.

How do power utilities promote energy efficiency as a market incentive to their customers?

They offer discounts to customers who purchase and use energy efficient appliances and light bulbs.

In animal populations, DDT causes _____. a. birth defects b. tuberculosis c. sleeping sickness d. the flu e. malaria

birth defects

A(n) (BLANK) is an unmanipulated point of comparison for treatments in an experiment

control

(BLANK) is information obtained from scientific studies.

data

A scientist measures the (BLANK) in an experiment.

dependent variable

Which term is used to describe the conversion of natural resources into goods and services?

economy

A(n) (BLANK) tests the validity of a hypothesis.

expirement

A scientist manipulates the (BLANK) in an experiment

independent variable

In the policy-making process, science is _________.

only one of the factors that influence policy makers

What event is credited with leading to the passage of the Clean Water Act?

the Cuyahoga River catching fire

Private, voluntary efforts to keep the "tragedy of the commons" in check are often less effective than mandated public policy because of _______.

the free-rider predicament

A condition in an experiment that can change is called a(n) (BLANK)

variable