This movement is called convection. It can be found in liquids, gasses and rheids - solids that can also experience movement ( on a big time scale), such as the earth mantle. One of the types of convection is diffusion: net movement of gasses from higher to lower concentration areas.
Answer:
The elevation changes from 635 to 600 at the picnic area.
Explanation:
In the picnic area which is close to point 4 on the map, the elevation changes from 635 to 600. We see that the site chosen for the picnic has a very gentle elevation and would be easily taken as a flat plain surrounded by hills.
The contours here are far apart and it implies a flat area with gentle slope. The only creek here is the equation creek. The area is below 635.
Answer:
D. In the mantle
Explanation:
The core of the Earth is extremely hot, and material in the mantle close to the core is heated
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