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Amit Singh 6 years, 11 months ago

Isobars are line on map that shows meteorologist what is the pressure at the surface of the earth
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Sia ? 3 years, 5 months ago

Parallel / Latitude Meridian / Longitude
  • Parallels are also known as latitudes
  •  Meridians are also known as longitudes
  •  Represented by the Greek letter phi (Φ)
  •  Represented by the Greek letter lambda (λ)
  •  The first parallel is the equator. It is latitude 0.
  •  Greenwich is the prime meridian (0°)
  •  Parallels don’t intersect.
  •  All meridians intersect at two places; the North Pole and the South Pole.
  •  Values range from 0 (the Equator) to 90 (the north and south poles)
  •  Values for longitude range from 0 (the Prime Meridian) to 180 degrees
  •  Letters N and S are used to denote the location
  •  Letters E or W are used to represent  direction
  • Positive values may be used in the Northern hemisphere and negative values in the Southern hemisphere
  • Positive values can be used east of the Prime Meridian and negative values in the west of the Prime Meridian
  •  Every parallel in the same hemisphere has a different length.
  • Every meridian on Earth has the same length.
  •  Every parallel is a full circle
  •  Every meridian is a semi-circle
  •  Each parallel crosses all longitudes
  •  Each meridian crosses all latitudes
  •  To cross all parallels, you have to travel 12,000 miles
  •  To cross all meridians, you have to travel 24,000 miles
  •  Locations with the same latitude do not fall in the same time zone
  •  All locations on the same longitude fall in the same time zone
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Amar Kumar 6 years, 11 months ago

Salinity:A measure of the quantity of dissolved salts in sea water. The total amount of dissolved solids in sea water in parts per thousand by weight. The average ocean salinity is 35ppt and the average river water salinity is 0.5ppt or less. This means that in every kilogram (1000 grams) of seawater, 35 grams are salt.

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Varun Banda 6 years, 11 months ago

A volcano is a vent in the earth's crust through which lava, rock fragments, hot vapor and gases are ejected. A volcano begins to form when magma, which is hot molten rock from deep within the earth, rises toward the earth's surface and collects in magma chambers.

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