REALLY EASY 10 POINTS!?

Question

Can you please define these in SIMPLE definitions please?

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(first one to get them all gets 10 points!)

FRONTAL PRECIPITATION-

OROGRAPHIC PRECIPITATION-

CONVECTIONAL PRECIPITATION-

DEPOSITION-

PRIME MERIDIAN-

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Answer 1

FRONTAL PRECIPITATION

Any precipitation attributable to the action of a front; used mainly to distinguish this type from air-mass precipitation and orographic precipitation.

OROGRAPHIC PRECIPITATION-

Orographic precipitation occurs on the windward side of mountains and is caused by the rising air motion of a large-scale flow of moist air across the mountain ridge, resulting in adiabatic cooling and condensation.

CONVECTIONAL PRECIPITATION

Convectional precipitation describes rainfall that is produced when convectional currents form in the atmosphere. When the earth's surface is heated, as on hot summer days, the temperature of the air above it increases. Heated air rises, forming an updraft. The rising air gradually cools as it ascends through the atmosphere. Water vapor in the cooling air condenses to form clouds, eventually precipitating to form either rain or hail. Rain cools the surrounding air as it falls. Cooled air descends towards the ground, forming a downdraft (the strong gusts of wind just before and during a storm are caused by these downdrafts). This forms the initial convectional current. Rain cools the surface of the earth, eventually blocking the formation of further updrafts. This ends the convectional current cycle, and precipitation eventually disappear.

DEPOSITION-

Deposition A process that occurs in subfreezing air when water vapor changes directly to ice without becoming a liquid first. (Also called sublimation in meteorology.)

PRIME MERIDIAN-

The Prime Meridian is the meridian (line of longitude) at which longitude is defined to be 0°.

The Prime Meridian and the opposite 180th meridian (at 180° longitude), which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.

Unlike the parallels of latitude, which are defined by the rotational axis of the Earth (the poles being 90° and the Equator 0°), the Prime Meridian is arbitrary. By international convention, the modern Prime Meridian is one passing through Greenwich, London, United Kingdom, known as the International Meridian or Greenwich Meridian. Historically, various meridians have been used, including four different ones through Greenwich.

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Answer 2

GO ON DICTIONARY.COM!!

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