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Geology, Geography, Oceanography, and Meteorology
The four sphere of the earth are the Atmosphere (gaseous envelope), the hydrosphere (water), the lithosphere (crust, mantle), the biosphere (living organisms).
The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars. Of these four, the largest and the most massive is the Earth.
Hydrosphere.
Next after Earth is Mars, then the four "outer planets": Jupiter, Saturn, Uranus, and Neptune.
There would have to be trillions of four-legged animals that exist on Earth.
Geology Astonomy Oceanography Meteorology
Geology, Geography, Oceanography, and Meteorology
Four series exist: thorium, uranium, neptunium, actinium.
-Atmosphere, acts as a blanket, moderates surface temp -Lithosphere, rocky, outer shell of Earth, consists of rocks and minerals -Hydrosphere, Includes oceans, lakes, ice, groundwater, etc, consists of all the water on, above and below Earth's surface -Biosphere, areas where life can exist, very thin
Nile Valley, Tigris and Euphrates Valleys, Indus Valley, Yangtse Valley.
The four quadrants.
Four original copies exist.
It exist because it may grow an extra leaf
The Four areas of Earth Science are: 1) Geology - The study of the Earth 2) Meteorology - The study of the Atmosphere, weather, and climate 3) Oceanology - The study of the Oceans 4) Astronomy - The study of the Universe
Life probably does not exist on any of the known planets (except earth). But if life does exist on one of those planets, it would probably be on Mars. Venus is way too hot, Mercury does not have an atmosphere, and the other four planets are made up almost entirely of gas.
Not every person had it. Only one of four.