Environmental science
Coral reefs are intricately shaped rocklike structures that are formed as a result of
A - the secretion of calcium carbonate by tiny marine animals.
Why doesn't photosynthesis occur in deep ocean water?
A - there is no sunlight
Which of the following is an advantage of using fossil fuels for energy?
A - versatility in their uses.
If an insect eats a plant and a bird eats the insect, about how much energy from the plant is stored in the insect for a bird to use?
B - 10 percent
A hybrid car uses
B - an efficient gasoline engine and an electric motor.
Which of the following is the most geologically active region on the surface of Earth?
B - boundaries between tectonic platea
Which of the following situations best describes the use of a renewable resource?
B - building wooden furniture
Geothermal heat pumps can hear homes by
B - circulating fluid underground to absorb heat from Earth.
Swamps are commonly found on
B - flat, poorly drained land
Most of the energy consumed in the United States is used for
B - industrial purposes
The distance north or south of the equator, as measured in degrees, is called
B - latitude
Most scientists classify organisms into
B - six kingdoms
The energy in most ecosystems comes from
B - sun
What is the main reason why fewer nuclear power plants are being built today compared to 40 years ago?
C - Nuclear fusion plants are being built instead.
Which organism is likely to be in the bottom trophic level of a food chain?
C - algae
Biomes
C - are aurally described their vegetation
In the ___ zone, the water is cool and dark.
C - benthic
Tropical rain forests are threatened by
C - deforestation and the trade if rain forest plants and animals.
The most energy-efficient vehicles available today are
C - hybrid cars.
What are the two main types of freshwater wetlands?
C - marshes and swamps.
Estuaries are very productive ecosystems because they receive fresh nutrients from
C - rivers and oceans
Which ecosystem had the highest level of salinity?
C - salt marsh
Coal is formed when
C - swamplands are buried by sediment. The added weight creates heat and pressure that converts the plants to coal.
Which if the following is an example of cogeneration?
C - using the waster heat from a furnace to power a steam turbine.
What term is used to refer to the many feeding relationships that are possible in an ecosystem?
C- food web
During the _____ period(s), humans altered their habitats.
D - All of the above
Hydrogen can be used as a fuel source in the future because it
D - All of the above
The energy in fossil fuels is often converted into
D - Electricity
The types of organism found in a pond or lake depend on
D - all of the above
The main factor that determines what type of plants grow in a biome is
D - both a and b
Which if the following is a major source of biomass fuel in developing countries?
D - both a and b.
What essential characteristic does a good experiment have?
D - both b and c
Ocean water ____ than fresh water.
D - contains more salrs
Which of the following is NOT a main use of fuel?
D - cooking
The percentage of energy put into a system that does useful work is
D - energy efficiency
Solar energy, or energy from the sun, is contained in
D - fossil fiels
Oil and natural gas result from
D - the decay of tiny marine organisms that accumulated on the ocean floor millions of years ago.
In an experiment, the factor of interest is called the
D - variable
All of the fields of study contribute to environmental science except
Linguistics
Storage sites for nuclear wastes
A - should be located only in areas that are extremely geologically stable
Which if the following describes soil and temperature in an ecosystem?
A - abiotic factors
Renewable energy comes from sources that
A - are constantly being formed.
Habitat loss, soil erosion, and air pollution are disadvantages of which renewable energy source?
A - biomass fuel
The group that does not receive the experimental treatment in an experiment is the
A - control group
What kind of natural disaster helps some forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth?
A - fire
Which if the following statements about hydrogen as a fuel source is correct?
A - hydrogen can be burned as a fuel or used to produce electricity chemically.
A fuel's stability is dependent on all of he following factors, except
A - magnetism
Which organism produces most of the food in an aquatic ecosystem?
A - phytoplanyon
Which of the following are producers of oxygen?
A - plants
The majority of marine organisms are found in
A - shallow, coastal waters
