Earth's air is made up of molecules of different gases that are not joined chemically, and a terminology which best describes air is mixture.
<h3>What is a mixture?</h3>
A mixture can be defined as a combination of two (2) or more substances which are present in varied proportion (unfixed ratios). Also, a mixture can be visibly seen with our na-ked eyes and separated by physical means.
<h3>The types of mixture.</h3>
In Chemistry, there are two (2) main types of mixture and these include the following;
From the above definition of a mixture, we can reasonably infer and logically deduce that the particles of a mixture do not have a set ratio on how to combine and they can be separated through the use of a physical separation technique.
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When an object has the gravity to pull itself into a sphere, astronomers say that it's in hydrostatic equilibrium. And that's why the Earth is round. Of course, the Earth isn't perfectly round. Because it's turning on its axis approximately once every 24 hours, the Earth's equator bulges outwards.
Answer:
superincumbent load in rock slab
Explanation:
- This pressure is defined as the geothermal pressure that the rocks excerpt from above the surface of the earth which is caused by the weighting of the overlying rock strata.
- This identification can be found in geology itself in terms of fluids and natural gases which led to the formation of coal deposits millions of years ago. With great pressure and thrust from the rocks
- This burning pressure that the rocks feel from above as in the case of earth core and mantle layers. A tectonic plate is subdued to greater depths here and this layer and hence more pressure from the remaining earth mass from above.
The coast of south america fits perfectly with the coast of africa.
There are fossils of species of land animals found on completely different continents.
and the theory of plate tectonics