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