Hello There! ^_^
Your question: What were the three main Indian groups before European explorers arrived..?
Your answer: The Mayan, the Aztecs and the Incas were the three main Indian groups before European explorers arrived.
Hope this helps!
Location, Industry and Military
You need physical map to check the amazon river
<h2>Broken down of soil particles by the processes of weathering and erosion, carried by the action of wind, water, ice or by the force of gravity acting on the particles.</h2><h2 />
Explanation:.
Sediment enriches the soil with nutrients and rich in biodiversity. This soil works great for farming. The deposition of sediments makes the agricultural areas like deltas and river banks more fertile.
Glaciers carry a huge range of sediment with several sizes. With continues deposition, space for the animal and plant life gets reduced.
The most dangerous part is that the animal’s may suffocate and intervention may occur with their food intake.
