Barrons AP Environmental Science

(B) Clear-cutting removes all trees from an area in a single cutting. ...

(C) Dams create a series of lakes, slowing the current and delaying downstream migration. The delay interferes wi ...

(A) Today, 3 million fishing boats operate and are greatly depleting the supply of fish and other aquatic life-fo ...

52. (C) Element Approximate % by weight Oxygen 46.6 Silicon 27.7 Aluminum 8.1 Iron 5.0 ...

(A) Smog is a type of air pollution that is derived from vehicular emissions from internal-combustion e ...

(D) Virulence is the harm that parasites and diseases cause to their host. Parasite virulence is, in g ...

(D) To find the doubling time of a population at any given annual rate of growth, divide 72 by the annu ...

(D) Sulfur dioxide (SO 2 ) leads to the formation of sulfuric and sulfurous acid. Ammonia (NH 3 ), although ...

(A) Large-scale circulations develop in Earth’s atmosphere due to uneven heating of its surface by the sun’s rays. ...

(C) Refer to the table in Chapter 6, “Populations,” that shows differences between r-strategists and K-strategis ...

59. (B) ...

(D) Climax communities are characterized by: stability, high species diver​- sity, low competitive interaction, lim ...

(E) Environmental mitigation is used to describe projects or programs intended to offset known impacts to ...

(C) Carbon dioxide is the ultimate result of perfect combustion of any carbon-based fuel. The only ways to ...

(B) The median lethal dose, LD 50 , of a toxic substance is the dose required to kill half the members o ...

(A) Statement I: Higher temperatures give rise to a more active water cycle, which means more evap ...

(A) Sediment is the largest contaminant of surface water by weight and volume in the United States, and is identif ...

(C) Municipal solid waste (MSW)—more commonly known as trash or garbage—consists of everyday items we ...

(A) Control rods regulate the number of neutrons in the core of a nuclear reactor and control the rate of ...

(B) A moderator is a substance that reduces the speed of fast neutrons, thereby turning them into therm ...