<span>Heavy rain on a fairly even slope creates "sheet runoff." The water flows down slope as an even sheet. Any dips in the slope will collect more runoff water, which will be able to erode more strongly. If the force of this water is not stopped it will produce a gully . The gully will collect more and more water and cause even more erosion. In time it will remove the soil down to solid bedrock.
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Answer:
we have star dust in out vain's
Explanation:
And that iron in the haemoglobin molecule was created – it was manufactured by nucleosynthesis inside a massive star that blew up about 8 billion years ago. So inside you are the remains of a star explosion." NPR: "Stardust in our veins?" JT: "Absolutely – you are made of stardust."
Answer:
The crust size remains constant because the older crust is melted at subduction zones.
Explanation:
The crust is constnatly created on Earth, but the crust is constantly getting destroyed as well. This situation leads to the total size of the crust being roughly at the same level, or rather constant, as one side a new one emerges, while at the same time, on the other side it gets destroyed.
The vast majority of the new crust is formed where there are divergent plate boundaries. Here, a gap opens up between the plates that move away and magma is constantly rising to the surface and creates new crust. When it comes to the destruction of crust, it occurs at subduction zones. Here, one plate moves below another plate, and as it does it reaches the upper mantle where it gets melted and recycled because of the high temperatures and pressure.
There are limited amounts of resources in a general area. Some civilizations may not have the ability to produce resources that they need. That makes 2 routes:
1) cooperation: They can cooperate with another people group that lives in a different region and trade with them
2) conflict: They can attack/raid another people group in a different region for the resources
hope this helps
