Barrons AP Environmental Science

(D) The boiling point of a crude oil component or fraction, which is the temperature at which it evaporates, ...

(C) At the point of discharge, there is a sudden increase in the amount of toxins, suspended solids, and diss ...

(D) Thomas Malthus recognized that once the carrying capacity of an area was exceeded, organisms would di ...

(E) Note that only 10% of the population of young oysters reaches the 20th unit of life span. ...

(A) Note that almost all of the fruit flies reach the 90th unit of life span before the entire popula ...

(D) In the normal resting state for an adult human, the input of water through ingested fluids is approximately ...

(B) In IPM, one attempts to prevent infestation to observe patterns of infestation when they occur and to ...

(B) To calculate doubling time, divide the growth rate into the number 70. Thus a growth rate of 2% ...

71. (B) 350 – 250 = 100 100/250 = 0.40 0.40 × 100% = 40% ...

(C) Drylands occupy approximately 40% of Earth’s land area and are home to more than 2 billion people, an ...

(D) A pure capitalistic economy, in which financial gain is the primary societal motivator, leads to ...

(C) Industrial wastes of unknown content are often commingled with domestic wastes in sanitary landfills. Ground ...

(B) The oceans are an important sink for CO 2 through absorption of the gas into the water surface. As at ...

(B) The slope of the dose-response curves gives a good indication of how a target population will respond t ...

(D) The depth at which plankton can exist depends on the penetration of sunlight, which provides the energy ...

(C) A point source of pollution is a single, identifiable, localized source of air, water, thermal, or ...

(D) Shield volcanoes are built almost entirely of fluid lava flows in which flow after flow pours o ...

(D) More preventable deaths in the United States are caused each year by tobacco use than by all deaths from ...

(C) Countries in the Middle East own 56% of the world’s proven oil reserves. ...

(A) Coal provides 44% of the world’s electricity and 27% of its overall energy. The United States still has the wor ...