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Drought - Wikipedia

en.wikipedia.org/wiki/Drought

A drought is a period of below-average precipitation in a given region, resulting in prolonged ... Causes of drought. Precipitation deficiency. See also: Precipitation. File:Ancient Dry Spells Offer...

Causes of Drought

drought.unl.edu/DroughtforKids/WhatisDrought/CausesofDrought.aspx

Drought has many causes. It can be caused by not receiving rain or snow over a period of time. We learned in the discussions about the water cycle and weather  ...

Causes of Drought: What's the Climate Connection? | Union of ...

www.ucsusa.org/global_warming/science_and_impacts/impacts/causes-of-drought-climate-change-connection.html

Drought ranks second in terms of national weather-related economic impacts, with annual losses nearing $9 billion per year in the U.S. [1] Beyond direct ...

What factors are responsible for droughts to occur? - eSchooltoday

eschooltoday.com/natural-disasters/droughts/factors-that-cause-droughts.html

What causes drought? drought info Lack of rainfall (or precipitation) Droughts can occur when there is the lack of 'expected' precipitation (rain and snow).

What causes a drought? | Reference.com

www.reference.com/science/causes-drought-8e788bd462e654ff

Droughts are caused by changes in land and sea surface temperatures, atmospheric circulation patterns and soil moisture content. A change in any one of these ...

Drought - Causes and Stages - Geography - About.com

geography.about.com/od/globalproblemsandissues/a/drought.htm

A comprehensive overview of drought. The definition of drought, the causes of drought, economic effects of drought, and how drought can be controlled.

Drought Causes, Types, and Resources - Weather - About.com

weather.about.com/od/drought/f/droughts.htm

The cause of droughts is easily understood, but hard to prevent. Depending on the location, crop failures, famine, high food prices, and deaths can occur. One of  ...

Droughts: Questions and answers (U.S. Geological Survey)

water.usgs.gov/edu/qadroughts.html

What causes droughts? A drought is a period of drier-than-normal conditions that results in water-related problems.

What Causes Drought? - Green Living - LoveToKnow

greenliving.lovetoknow.com/environmental-issues/what-causes-drought

Includes: physical causes of drought, the human connection, climate change and drought, and guarding against dry times.

BBC - GCSE Bitesize: Human activities causing drought

www.bbc.co.uk/schools/gcsebitesize/geography/water_rivers/drought_rev1.shtml

A secondary school revision resource for GCSE Geography on the causes and impact of droughts.