Barrons AP Environmental Science

(D) As of 2016, proven gas reserves are dominated by three countries: Iran (18%), Russian Federation (17%), an ...

(E) Chemical formulas involved in producing acid rain include: (i) H 2 O(l) + CO2(g) H 2 CO3(aq) (ii) ...

(C) From a population of tens of thousands in the 19th century, the bald eagle had declined to only ...

(D) Feedback loops can enhance or buffer changes that occur in a system. Positive feedback loops enhance ...

(A) Nonanthropogenic means not caused by humans. When the choices are ranked by their contribution to the gre ...

(A) Eighty percent of pollution in the marine environment comes from the land. One of the biggest sources is non ...

(B) Currently, atmospheric carbon dioxide levels are 25% above where they stood at the time of the Industrial Re ...

(A) % change = ((new value – original value) ÷ original value) × 100 ...

(A) Phosphorus normally occurs in nature as a phosphate ion; the most abundant form is called orthophos ...

(D) The median lethal dose, LD 50 of a toxin, radiation, or pathogen is the dose required to kill ha ...

(D) In (A) activity is low, and it occurs at very shallow depths. The point is that the lithosphere is very ...

(D) In stage three of the demographic stage model, birth rates fall due to access to contraception, resultin ...

(B) Differences in air pressure help cause winds and affect air masses. They are also factors in the formation ...

(D) The pH scale is logarithmic, and as a result, each whole pH value below 7 is ten times more acidi ...

(A) SBS (sick-building syndrome) is associated with acute or immediate health problems. Radon and asbestos c ...

(D) Tropospheric ozone would be ozone found in the air that we breathe, generally produced by burning fo ...

100.(C) Agriculture accounts for 92% of all freshwater use globally. China, India, and the United States are responsib ...

Energy to heat water: NOTE: If you do NOT show calculations, no points are awarded. No penalty will be asses ...

Energy and the U.S. Protection Agency have joined with appliance manufacturers to institute the “Energy Star®” ...

Use biodegradable detergents that use minimal amounts of phosphates ■ Pre- soak heavily soiled clothes ■ Try to ...