III. Tundra
IV. Grassland
(A) I, II, III, IV
(B) IV, III, II, I
(C) III, I, IV, II
(D) II, III, IV, I
(E) II, IV, III, I
- Kerosene, gasoline, motor oil, asphalt, tar, waxes, and diesel fuel all come
from crude oil. Refineries take advantage of what physical property in order
to separate these components from the original crude oil?
(A) Solubility
(B) Freezing point
(C) Density
(D) Boiling point
(E) Viscosity - Refer to the data below taken from a stream. The Roman numerals indicate
collection sites.
Where would the lowest DO (dissolved oxygen) content be expected?
(A) I
(B) II
(C) III
(D) IV
(E) Dissolved oxygen would not be affected by sewage effluent. Therefore,