In a systems model, movement of energy or matter into the system is a(n):
a. subsystem.
b. output.
c. input.
d. closed system.
C
Environmental & Atmospheric Sciences
You might also like to view...
Rachel Carson's impact on environmental policy change was aided by support from
A) the American Medical Association. B) the EPA. C) industries producing DDT. D) public opinion.
Environmental & Atmospheric Sciences
The Cenozoic Era began approximately ________ years ago.
A. 4.55 billion B. 531 million C. 65 million D. 252 million E. 2.6 million
Environmental & Atmospheric Sciences
In colonial times, Brazil was a part of the __________, which functioned as a transportation conveyor, moving goods and people around the regions bordering the Atlantic Ocean
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
The Los Angeles smog problem is made much worse by ________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences