азот

An element with atomic number 26; symbol: Fe. Iron is one of the most abundant elements in the rocky planets. It is the most abundant element in the metallic cores of the inner ...

метеорит

Astronomy; Planetary science

A natural solid object (metallic or stony/silicate) larger than 10 µm (microns) that has traveled through space, by natural means from the celestial body on which it formed, and ...

кратер

Astronomy; Planetary science

A hole or depression. Most are roughly circular or oval in outline. On Earth most natural craters are of volcanic origin. On the Moon most are of impact origin.

магматски океан

Astronomy; Planetary science

Term used to describe the layer of magma, hundreds of kilometers thick; thought to have covered the Moon 4. 5 billion years ago. The timing, duration, cooling rates, convection, ...

негравитациони сили

Astronomy; Planetary science

Forces that alter the path of a comet, which are not caused by gravitational interaction with the Sun and planets. Typically this refers to uneven outgassing from vents on the ...

астронаут

Astronomy; Planetary science

Person engaged in or trained for spaceflight.

метан

Astronomy; Planetary science

A compound composed of carbon and hydrogen: CH4.

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Actividade/ Sector: Fruits & vegetables Category: Fruits

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The world's most popular fruit. The most common U.S. variety is the yellow Cavendish. They are picked green and develop better flavor when ripened off ...