Chapter Review Quiz

Directions:

Choose the best answer to each question. You may refer to pages 115–138 in Contemporary’s GED Science if you need additional help. When you have finished the quiz, click on Submit Answers to receive feedback and results. You may also choose to e-mail your results to your instructor.


1	What are pathogens?
		A)	harmful bacteria, viruses, and fungi that cause infectious diseases
		B)	medicines taken to relieve the common cold and flu infections
		C)	the ways in which the human body responds when coming in contact with a virus, such as the cold virus
		D)	people who are infected with a disease
		E)	blood and other body fluids


2	What is the immune system?
		A)	an age-related disease
		B)	an unusual gene that is inherited
		C)	the rapid spread of a disease
		D)	a way of dealing with alcoholism and drug addiction
		E)	the body’s defense system


3	How does a renewable resource differ from a nonrenewable resource?
		A)	A renewable resource cannot be replaced, while a nonrenewable resource can be replaced in a short period of time.
		B)	A renewable resource can be replaced in a short period of time while a nonrenewable resource is not replaceable.
		C)	A renewable resource is a resource that decreases in cost over time, while a nonrenewable resource increases in cost over time.
		D)	A renewable resource is a resource that is available today; a nonrenewable resource is a resource that is no longer available.
		E)	Renewable resources do not evolve over time; nonrenewable resources do evolve over time.


4	What is the purpose of recycling?
		A)	to dispose of trash in the safest way possible
		B)	to prevent disease from occurring in landfills
		C)	to conserve natural resources by reusing them
		D)	to identify toxic chemicals in drinking water
		E)	to produce electricity from natural processes


5	Which of the following is the best definition of biodiversity?
		A)	the selective thinning of herds of certain animals
		B)	the placing of a variety of plants and animals in a zoo
		C)	the dying off of an entire plant or animal species
		D)	a healthy diversity of plants and animals in the natural environment
		E)	the preservation of the habitat of an endangered species


6	Which of the following is the LEAST serious possible consequence of a rapidly growing population?
		A)	new consumer products
		B)	mass starvation
		C)	inadequate medical care
		D)	overcrowding
		E)	poor land use


7	Which of the following is the LEAST safe method of solid waste disposal?
		A)	depositing solid waste in a controlled landfill
		B)	storing radioactive waste away from the public
		C)	composting biodegradable waste
		D)	recycling certain types of solid waste
		E)	burning all types of waste in an incinerator


8	Which of the following is the best definition of the greenhouse effect?
		A)	the heating of Earth's atmosphere by sunlight, a heating that is controlled by properties of Earth's ice caps
		B)	the heating of Earth's surface by sunlight, a heating that is controlled by the insulating and warming properties of Earth's atmosphere
		C)	the heating of the Earth's ice caps, with the result that they melt and slowly cause the ocean levels to rise
		D)	the slow heating of the oceans and death of fish as ocean water warms to a high level
		E)	the slow disappearance of Earth's atmosphere caused by gas slowly diffusing into space

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