Which of the following air pollutants is emitted mainly by the automobile?
a. particulates
b. carbon monoxide
c. sulfur dioxides
d. hydrocarbons
e. nitrogen oxides
b
You might also like to view...
The dark halo is now believed to extend at least
A) 100,000 light-years. B) 50 kpc. C) 8 kpc. D) 15,000 light-years. E) 15 kpc.
What else became calculable when Henry Cavendish calculated the value of G (the gravitational force between two objects on Earth)?
a. The distance between the Earth and the Moon. b. The weight of the Earth. c. The mass of the Earth. d. The fact that the earth is spherically symmetric. e. The diameter of Earth.
A long straight wire is carrying a current of 2.4 A in a region where the magnetic field is perpendicular to the wire. If the magnetic field is 0.52 mT and makes a 60 
angle with the wire, what is the magnitude of the force on 3.0 m of the wire?
A. 3.2 N
B. 6.5 N
C. 
D. 
E. 
Exclusion Principle: If ? = 4, which one of the following is a possible quantum number for n?
A. 0 B. 2 C. 3 D. 4 E. 8