Arizona

Utah

District of Columbia

Florida

Idaho

New Hampshire

Rhode Island

Vermont

Washington

Wyoming

Montana

Maine

North Dakota

Kentucky

Virginia

Delaware

Mississippi

West Virginia

Nebraska

Texas

Missouri

Louisiana

North Carolina

Oregon

Alabama

New Mexico

Kansas

Wisconsin

New Jersey

South Carolina

Michigan

Connecticut

Pennsylvania

Colorado

Nevada

Massachusetts

Georgia

New York

Maryland

Oklahoma

Tennessee

California

Arkansas

South Dakota

Ohio

Indiana

Minnesota

Iowa

Illinois

None

A map shows the p H levels of acid rain in the U.S. States like Ohio and Pennsylvania have the lowest p H levels (4.50 to 4.59 p H, black). States like Arizona and Nevada show the highest p H levels (greater than or equals 5.30 p H, light yellow).

Average acidity of precipitation in the United States. Lower pH values represent greater acidity.

Acid Rain (U.S.)

United States

Geosystems: Intro to Physical Geography

Acid Rain

Ontario

A world map shows global terrorist attacks. The highest concentration of attacks is in regions such as the Middle East, Northern Africa, and South Asia. Areas with fewer attacks (sparse points) include North America, South America, and Australia.

The deadliest acts of terrorism from 1970 to 2016. These violent acts were aimed at attaining a political, economic, religious, or social goal, and there is evidence of an intention to coerce, intimidate, or convey some other message to a larger audience (or audiences) than the immediate victims.

Global Terrorist Attacks

World

Global Terrorism Database

Alaska

Alberta

British Columbia

Hawaii

Manitoba

New Brunswick

Newfoundland and Labrador

Northwest Territories

Nova Scotia

Nunavut

Prince Edward Island

Québec

Saskatchewan

Yukon

A map shows corn production in the U.S. States like Iowa, Illinois, and South Dakota have the highest production (dark blue). States like Alaska, Utah, and Idaho show the lowest production (lighter blue).

Annual corn production in North America by state or province

US / CA States

North America

USDA

Corn Production

Metric tons

Anthropogenic Biomes

Areas at Risk of Soil Degradation

Average Annual Precipitation

Biomes

Climate Zones

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Worst-Case Projections (NASA)

Insolation

Land Cover

Major Soil Orders

Prevailing Agricultural Practices

World Elevations

Display by:	Acid Rain									Global Terrorist Attacks	Corn Production
	4.50–4.59 pH	4.60–4.69 pH	4.70–4.79 pH	4.80–4.89 pH	4.90–4.99 pH	5.00–5.09 pH	5.10–5.19 pH	5.20–5.29 pH	≥5.30 pH	Global Terrorist Attacks	Class	Rank	Metric tons
District of Columbia			100%
Alabama					84.6%	13.4%						30	869,000
Alaska												54	0
Alberta												46	44,000
Arizona								1.23%	98.8%			37	224,000
Arkansas						17.5%	40.8%	7.44%	10.2%			17	3,050,000
British Columbia												48	11,800
California									99.7%			43	89,900
Colorado							1.85%	3.55%	88.3%			18	3,010,000
Connecticut			49.9%	50.0%								58	0
Delaware			17.4%	81.8%								31	721,000
Florida				1.32%	13.8%	25.9%				1		36	233,000
Georgia				7.01%	3.21%	2.51%	3.47%					25	1,710,000
Hawaii												63	0
Idaho								4.63%	95.4%			33	604,000
Illinois					39.9%	27.0%	15.0%	3.08%	9.73%			2	57,600,000
Indiana			12.8%	4.37%	8.75%	5.18%						5	24,800,000
Iowa								1.50%	98.5%			1	63,000,000
Kansas									100%			9	13,000,000
Kentucky			1.72%	54.3%	1.61%	9.53%						14	5,350,000
Louisiana					41.6%	42.5%	8.80%	4.48%	2.23%			24	1,880,000
Maine					17.3%	69.8%	10.8%					55	0
Manitoba												28	1,330,000
Maryland			12.5%	29.8%	10.3%							26	1,590,000
Massachusetts				98.2%								60	0
Michigan				24.0%	10.0%	4.73%	13.3%					13	8,530,000
Minnesota							2.86%	4.42%	92.3%			3	37,100,000
Mississippi					14.3%	79.0%	5.27%					22	2,370,000
Missouri						26.1%	26.9%	12.0%	34.2%			10	12,800,000
Montana								9.26%	90.7%			39	196,000
Nebraska									100%			4	37,000,000
Nevada									100%			53	0
New Brunswick												47	42,900
New Hampshire				72.0%	27.9%							50	0
New Jersey		5.98%	36.6%	32.6%	23.7%							40	196,000
New Mexico								4.15%	91.3%			42	136,000
New York		4.25%	52.6%	35.3%								23	2,040,000
Newfoundland and Labrador												51	0
North Carolina			1.35%	37.2%	1.72%	9.88%						21	2,510,000
North Dakota									100%			12	8,880,000
Northwest Territories												57	0
Nova Scotia												45	47,700
Nunavut												52	0
Ohio	5.07%	9.56%	59.7%	23.0%								7	15,100,000
Oklahoma							2.73%	5.70%	91.6%	1		32	620,000
Ontario										1		11	9,440,000
Oregon								2.68%	97.3%			35	271,000
Pennsylvania	3.58%	34.8%	29.1%	10.8%						1		19	2,990,000
Prince Edward Island												62	0
Québec												16	3,560,000
Rhode Island			2.00%	3.88%								56	0
Saskatchewan												59	0
South Carolina				33.6%	64.2%	2.08%						29	930,000
South Dakota									100%			6	16,800,000
Tennessee			5.63%	19.5%	14.5%	3.55%						20	2,630,000
Texas					8.53%	1.49%	4.74%	5.19%	56.4%	1		15	3,880,000
Utah								1.69%	98.3%			44	67,100
Vermont				95.7%	4.07%							49	0
Virginia			3.50%	1.66%	15.4%							27	1,440,000
Washington								23.4%	70.9%			34	419,000
West Virginia		7.63%	45.0%	12.8%	8.92%							41	149,000
Wisconsin						4.01%	46.8%	27.3%	21.3%			8	13,900,000
Wyoming									100%			38	218,000
Yukon												61	0

MapMaster 3

Acid Rain