1) In terms of numbers of plants and animal species (biodiversity), the world's richest terrestrial ecosystems are the
tropical deserts.
tropical rain forests.
boreal forests.
temperate forests.
temperate grasslands.
2) The hydrologic cycle involves _____.
the movement of all gases
the cycling of ground water
the cycling of all water
the cycling of air masses
the cycling of nitrogen dioxide
3) All of the following are true about an ecosystem except
it is made up of living and nonliving environments.
it can only be located in the oceans.
it can be man controlled or natural.
it is a delicate balance between living and nonliving members.
it has energy and chemical materials flowing in cycles.
4) Photosynthesis is
a process through which green plants make their own food.
part of a hydrologic cycle.
a part of the water cycle.
the third stage of a food chain.
the process through which animals manufacture their food.
5) The three major biotic components of an ecosystem structure are
producers, herbivores, and carnivores.
producers, consumers, and decomposers.
plants, animals, and climate.
consumers, bacteria, and decomposers.
temperature, moisture, and light.
6) An anthropogenic (human produced) process that returns carbon to the atmosphere is
wild fires.
volcanic action.
photosynthesis.
weathering of rock.
fossil fuel combustion.
7)Tropical forest destruction and degradation results from
unsustainable, small-scale farming and cash crops farming.
cattle ranching and commercial logging.
mining operations and oil drilling.
economic growth and development.
All of the above
8) Which of the following is NOT an important element in the structure of living organisms?
Carbon
Aluminum
Hydrogen
Nitrogen
Phosphorus
9) People have had great influence on the biological diversity in their surrounding environment as a result of
hunting.
habitat destruction.
introduction of non-native species.
pollution of the environment.
All of the above
10) Fossil fuels are formed by
the compression of rocks.
the decay of dead organisms over millions of years.
volcanoes.
the decay of city sewage.
the decay of dead organisms over many decades.