Freshwater Swamp Forest
Lowland Equitorial Forest
Low annual precipitation
Plant growth occurs in wet and warm months
Individual plants are widely spaced due to intense competition for water
Loss of biomass
Grazing poultry or livestock
Plowing up roots
Higher population density
Exponential growth curve
Logistic growth curve
Lakes and ponds
None of the above
Algae blooms often occur when a limiting nutrient is provided.
Any amount of animal wastes found in water is considered harmful.
No microorganism can survive the chlorination of water for drinking.
Natural organic chemicals tend to be more toxic than synthetic ones.
Chlorination is part of the tertiary treatment of waste water.
In most cities, primary treatment of waste water is sufficient.
At present, sludge from waste-water treatment plants is used as soil conditioners.
Nitrogen and phosphorus are often present in significant quantities after secondary treatment.
Human technology has been responsible for periodically increasing the carrying capacity.
We have exceeded our carrying capacity as exemplified by world hunger.
The earth can probably support 40-50 billion people on a vegetarian diet.
In all likelihood, human do not have a carrying capacity.
Are successful only if compulsory methods are employed.
Have been instituted in China primarily on voluntary, incentive-based criteria.
Have been fairly successful in India due to its early recognition of the problem.
Have generally been unsuccessful in those countries with the highest populations.
Oxygen, ozone, and water
Ozone, carbon dioxide, and water
Nitrogen, carbon dioxide, and ozone
Oxygen, carbon dioxide, and nitrogen
build electric cars
Burn low sulfur coal
build taller smoke stacks
Install smoke stack scrubbers
Electric power plants.
Species with large territories
Species with specialized habitats
The cause of most extinctions is fairly easy to determine.
Due to intense interest, the extinction rate at present is declining.
The only cause of coral reef destruction is overexploitation by fisheries.
Many mass extinctions seem to have been caused by climatic disruption of habitat.
CFCs can be removed from the atmosphere by rain.
It is released chlorine from a CFC that destroys ozone.
HCFCs are more harmful to the ozone layer than CFCs.
CFCs are highly reactive compounds in the troposphere.
Burning fossil fuels
More people, more exhaling CO2
Production of carbonated soft drinks
Geothermal power is most practical along plate margins.
Geothermal power is unique in that pollution is not a byproduct.
Geothermal energy exploitation, like hydropower, has leveled off worldwide.
The first commercial hot dry rock power station is in operation in Great Britain.
Today we are experiencing a decrease in species diversity.
Species diversity was greater during the age of dinosaurs than today.
Species diversity decreased when oxygen levels on earth became too high.
The development of eukaryotic organisms signaled the beginning of a mass extinction.
Loss of wetlands often means a loss of an aquifer's recharge zone.
The aquifer in the Philippines has yet to be tapped by agriculture.
Groundwater pollution is expected to pose little problem since groundwater exists in such vast quantities.
Wastes can be safely disposed of into aquifer includes because they are confined, away from drinking water.