The growth rate of population is determined by?
improved agriculture
number of death per 1000
birth and death rates
technological know-how
Correct answer is C
No explanation has been provided for this answer.
Which of the following indices is a measure of development?
Total population
Population density
Life density
Types of building
Correct answer is D
No explanation has been provided for this answer.
The most serious environment effect posed by hazardous wastes is
contatmination of ground water
destruction of habitat
air pollution
increase use for land to landfills
Correct answer is B
No explanation has been provided for this answer.
The type of coal that burns with great heat and very little smoke is?
anthracite
lignite
steam coal
peat
Correct answer is A
No explanation has been provided for this answer.
Which of the following is a component of a biotic community?
Rocks
Water
Gases
Animals
Correct answer is D
No explanation has been provided for this answer.