تحقیق در مورد فصل و ماه های انگلیسی

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تحقیق در مورد فصل و ماه های انگلیسی

فصل و ماه های انگلیسی : مقدمه

Season

A season is a subdivision of the year, marked by changes in weather, ecology, and hours of daylight.

Seasons result from the yearly revolution of the Earth around the Sun

and the tilt of the Earth‘s axis relative to the plane of revolution.[1][2]

In temperate and polar regions, the seasons are marked by changes in the intensity

of sunlight that reaches the Earth’s surface, variations of which may

cause animals to go into hibernation or to migrate, and plants to be dormant.

Four-season

Calendar-based reckoning defines the seasons in relative rather than abolute terms.

Accordingly, if floral activity is regularly observed during the coolest quarter of the year in a particular area,

it is still considered winter despite the traditional association of flowers with spring and summer.

Additionally, the seasons are considered to change on the same dates everywhere

that uses a particular calendar method regardless of variations in climate from one area to another.

Most calendar-based methods use a four season model to identify

the warmest and coolest or coldest seasons which are separated by two intermediate seasons.

Spring

Spring is one of the four conventional temperate seasons, following winter and preceding summer.

There are various technical definitions of spring, but local usage of the term varies according to local climate,

cultures and customs. When it is spring in the northern hemisphere,

it will be autumn in the southern hemisphere.

At the spring equinox, days are close to 12 hours long with day length increasing as the season progresses.

Spring and “springtime” refer to the season, and also to ideas of rebirth, rejuvenation, renewal, resurrection, and regrowth.

تحقیق در مورد فصل و ماه های انگلیسی

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