Answer:
In geology, the rivers' main role is erosion and deposition, while for humanity, they have been crucial for the survival and development.
Explanation:
The rivers are water bodies (almost always of freshwater) and they have an influence on many things, be it of living or non-living nature. Physically, the big influence of the rivers can be seen in geology. The socio-economic and existential influence can easily be seen with humans.
In geology, the rivers have a big influence because of their big erosive power and their carrying capacity. Basically, the rivers destroy the rock strata, but also carry the material and pile it up at another place. At humanity, the rivers have been crucial for the survival of the species, but they have also enabled humans to produce their own food, develop civilization, and prosper.
 
        
             
        
        
        
Answer:
"water, air, sunlight, soil, plants, microorganisms, insects and animals. Ecosystems may be terrestrial – that is, on land – or aquatic. Sizes of ecosystems vary; they could entail a small puddle or an enormous swath of desert. Likewise, natural ecosystems can look quite different from one another."
Explanation:
 
        
             
        
        
        
<span><span>Earth's atmosphere traps energy from the sun, whichcauses meteors to burn up.
allows ozone to form easily.
allows solar radiation to penetrate to the surface.
allows water to exist as a liquid.
Air has pressure because
wind moves the air.
the stratosphere is thick.
temperature warms the air.
air has mass.
The layer of the atmosphere between the stratosphere and the thermosphere is called the
mesosphere.
troposphere. (below stratosphere)
exosphere.
ionosphere.
When climbing a high mountain, you get out of breath easily because
air pressure is greater.
the air is more dense.
the percentage of oxygen in the air decreases.
there is less oxygen in each cubic meter of air.
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Answer: 
label A: South American plate
Label B: African plate
Label C: indo-Australian plate 
Explanation: