1. Relative humidity

=》 It tells us how much water Vapor is in the air, compared to how much it could hold at that temperature. It is shown as a PERCENT. For example, a relative humidity of 50 percent MEANS the air is holding one half of the water Vapor it can hold.

2. Isober

= 》 The isober 10 from Sentech USA is a sleek and compact designed breathalyzer which can connect with a smartphone app to your iOS or Android device. Manage and share data by text or email with other.

3. Isoyet (Isohyet)

= 》 a line on a map or chart connecting areas of equal rainfall.

4. Isohaline

= 》 Isohaline are lines (or contours) that join points of equal salinity in an aquatic system. Isohaline position REFERS to the distance (kilometres) of a near-bottom isohaline (usually 2 ppt) from the mouth of a coastal waterway.

5. Isotherm

= 》 a line on a chart representing changes of volume or pressure under conditions of constant temperature.

6. EQUINOX

= 》 An equinox is an event in which a planet's subsolar point passes through its Equator.

7. Solstice

= 》 A solstice is a moment in the year when the sun's apparent path is farthest north or south from Earth's Equator.

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