### weather | precipitation | rain:

Heavy rain
* Most heavy rain is produced by thunderstorms.
* Most heavy rain occurs in years
  - over time
* accompanied by high winds and extreme temperatures are means of natural control.
* accompanies severe windstorm
* can also cause alkalinity to decline
  - the lack of calcium, washing valuable nutrients out of the soil
  - dislodge aphids
  - produce dense fog that limits visibility
  - slow egg laying
  - carry sediment, nutrients, and bacteria into surface waters
* can cause flooding
  - nitrates to leach downward in the soil below the root zone
  - swollen rivers that are difficult to ford
  - the abscisic acid to be washed out
  - widespread flooding
  - create flash floods
  - disrupt mating and egg-laying
  - erode or saturate soil and further undermine the rooting of an unstable tree
  - flood the bays with fresh water, reducing salinity and killing the oysters
  - kill immature cereal leaf beetles
  - lead to flooding
  - occur with little warning and even small streams are dangerous in flood
  - result in flash flooding, inundating cars and endangering pedestrians
  - trigger rockslides
  - wash fertilizer left on the soil's surface into lakes, streams, wetlands, etc
* cause a river to change course, isolating two groups of lizards
  - floods with loss of life and property
  - sand and rocks to be washed down to lowlands and basins
* causes landslide.
* creates conditions
  - favorable conditions
* fall in coastal areas during winter
  - spring and summer, but autumn is fairly dry
* falls at a rate greater than four millimetres per hour
  - on rapidly melting snow
* indicates a strong downdraft within a thunderstorm.
* is made by all the fingers on each hand hitting the floor quickly together
  - one of the major causes of soil erosion
  - unfavorable for rust because it tends to wash the spores off the leaves
  - video games
* leach away salts deposited by fertilizing and by watering with the garden hose.
* makes roads and streets slick and dangerous.
* moves into areas.
* produce a hot and humid climate for most of the year
  - floods which can raise a lake level several feet overnight
* reduces visibility.
* soaking into a steep slope recipe for mudslides.
* tend to aid in dissemination of the pathogen.
* triggers large numbers of males to congregate and call, forming choruses.

### weather | precipitation | rain:

Less rain
* can lead to changes in leaf color and possible water shortages in wells.
+ Midwestern United States, Geography: Census Regions of the United States
  * The land in the Midwest is generally thought of as being flat. This is true of several areas in the Midwest, but there are parts that are not flat. For example, the eastern Midwest near the Appalachian Mountains, the Great Lakes basin, and northern parts of Wisconsin, U.P. of Michigan and Minnesota are not flat. Also, the northern part of the Ozark mountain range is in southern Missouri. Prairies cover most of the states west of the Mississippi River. Less rain falls in the western Midwest than in the eastern part. This causes different types of prairies. Areas in northern Minnesota, Michigan and Wisconsin, and the Ohio River valley are not very developed.

Light rain
* Some light rain falls during the winter months.
* can last for days.

Little rain
* falls in Egypt, and dry, windswept desert covers most of the land
  - a grassland biome
* is generated by the cold waters of the Indian Ocean.
+ Grassland: Agriculture
  * There are several parts of the world that have grasslands. Grasslands are found in Africa, North America, Central Asia, South America, and near the coasts of Australia. The largest grasslands are in East Africa. Grasslands with a few scattered trees are called savannas. Little rain falls in a grassland biome.