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Apes Vocab 101-120
Terms in this set (20)
natural pest control
better agricultural practices, genetically resistant plants, natural enemies, biopesticides, sex attractants
electricity generation methods
using steam from water boiled by fossils fuels or nuclear reactions; falling water to turn a turbine to power a generator
microscopic aquatic organisms in sediments converted by heat and pressure into a mixture of
pros of petroleum
relatively cheap, easily transported, high-quality energy
cons of petroleum
reserves will be depleted soon; pollution during drilling, transport and refining; burning makes CO2
steps in coal formation
peat, lignite, bituminous, anthracite
major parts of a nuclear reactor
core, control rods, steam generator, turbine, containment building
two most serious nuclear accidents
Chernobyl, Ukraine (1986) and Three Mile Island, PA (1979)
alternate energy sources
wind, solar, waves, biomass, geothermal, fuel cells
LD50 (LD-50, LD50)
the amount of a chemical that kills 50% of the animals in a test population
Mutagen; Teratogen: Carcinogen
(in order) causes hereditary changes through mutations; causes fetus deformities; causes
a group of organisms in danger of becoming extinct if the situation is not improved; population
numbers have dropped below the critical number of organisms; North spotted owl, Arctic polar bear, many others...
non-native species to an area; often thrive and disrupt the ecosystem balance examples :
kudzu vine, purple loosestrife, African honeybee ―killer bee‖, water hyacinth, fire ant, zebra mussel
The Tragedy of the Commons
(1968 paper by ecologist Garret Hardin) global commons such as atmosphere and oceans are used by all and owned by none
Volcano and Earthquake occurrence
at plate boundaries (divergent= spreading, mid-ocean ridges) (convergent= trenches)
(transform= sliding, San Andreas)
Sources of mercury
burning coal, compact fluorescent bulbs
Major source of sulfur
the maximum dose that has no measurable effect.
layer of dense, cool air trapped under a layer of warm dense air, pollution in trapped layer may
build to harmful levels. Frequent in Los Angeles, California and Mexico City, Mexico.
process where water is absorbed by plant roots, moves up through plants, passes through pores (stomata) in
leaves or other parts, evaporates into atm. as water vapor
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Write a proposal to reduce the mosquito population of an area. How might you encourage the public to assist in this effort?
Write your answer to each part clearly. Support your answers with relevant information and examples. Where calculations are required, show your work. Approximately 72 billion liters of milk are produced each year in the United States, from 8 million cows. On average, a single cow consumes 13,500 kg of corn feed each year. It requires 40 MJ to produce a kilogram of corn feed, which contains 20 MJ of energy. There are 15 MJ of energy in a single liter of milk. (a) Calculate the energy efficiency of growing corn and converting it into milk. (b) Describe two processes that reduce efficiency of milk production. Consider the entire process of milk production from the growth of cattle feed to the collection of milk. (c) To increase the energy efficiency of milk production farmers can harvest the fecal waste (manure) from cows and use the gas it produces as a source of energy. (i) What is the main chemical in gas produced by cow manure that can be used as a source of energy? (ii) At the molecular level, how is energy derived from this compound? (iii) If 10 percent of the food energy not used by cows could be captured as chemical energy from gas released by manure, what would be the energy efficiency of converting corn into milk?
Plant growth in which of the following biomes is primarily constrained by precipitation? (a) Boreal forest, (b) Temperate seasonal forest, (c) Temperate grassland, (d) Tropical rainforest, (e) Tundra.
E-wastes, such as the discarded computer parts, are a source of a. radioactive materials. b. heavy metals. c. compostable organic compounds. d. corrosive acids.