Some apes

secondary consumer

Many synthetic chemicals such as pcbs act as estrogen mimics in an ecosystem these persistent chemicals would have the greatest effect on which of the following

The dose response relationship is linear

A laboratory study using rats showed a steady increase in physical effects as the concentration of a toxic substance in their food was increased this suggests that

Montreal Protocol

Addresses the issue of stratospheric ozone depletion

Endangered Species Act

Contains an amendment that allows private landowner to modify their property under a habitat conservation plan

Photovoltaic

Converts sola emery directly into electrical energy

geothermal energy

Drawbacks include noise and the release of corrosive chemicals

Potassium

Guano from this fish eating birds is a commercial source of this element

Younger than 18 years old

In a human population the population momentum effect is most likely to occur in cases in which a large percent of people in the population are in which age group

Most of the nutrient rush silt that the Nile annually deposited downstream is now deposited behind the dam

Many environmentalists consider Egypt's Aswan high dam on the hike river to be an ecological disaster. Which of the following is the best evidence to support this viewpoint

Carbon

Marine sediments that form limestones are a major sink for this element

Biomass

More commonly used in the least developed countries than in high developed countries

National Environmental Policy Act

Requires the federal government to produce an environmental impact statement any construction project funded by the government

integrated pest management

Switching from customer large scale agricultural practices to which of the following is most likely to reduce the exposure of farm worker and nearby residents to toxic chemical

Increase in Biological Oxygen Demand (BOD)

The release of late amounts of sewage and other organic wages into a river would likely result in a sharp

Sulfur

This element in pyrite contributes to acid mine drainage

Water that has been used for bathing and washing clothes

What is he best example of gray water

Open ocean

Which has the lowest net primary productivity measured as kilocalories of energy produced per squat meter per year

Reaching a maximum then experiencing a rapid decline

Which of the following best characterizes a population that is growing exponentially with time

They neutralize acid deposition

Which of the following best explains why decomposes in souls and water are important to ecosystems

Increasing the proportion of commercial energy that is produced by wind farms

Which of the following best illustrates a mitigation approach to climate change

Carbon dioxide

Which of the following compounds is not involved in the depletion if stratospheric ozone

Methane n ch4

Which of the following is a common component of the photochemical smog and is a reddish brown gas with a luge by odor

Chlorofluorocarbons (CFCs)

Which of the following is a greenhouse gas that comes only from human sources

It absorbs relatively little heat as it vaporizes

Which of the following is not a property of water

high life expectancy and low infant mortality

Which of the following paired of statistics would most likely indicate the highest quality of life in a country