The answer is: to keep the population isolated from freer societies.
Answer: The following that are not produced by a stream are:
1. moraines
2. Floodplain
Explanation: Stream produces:
1. Delta which occurs when streams enter a standing body of water.
2. Alluvial fans occurs when a stream leaves a relatively steep area and enters a nearly flat one.
<span> Where </span>sedimentary rocks<span> are well-</span><span>exposed, relationships among each layers are easily determined. ... At the same time, mud and carbonate deposition </span>takes place<span> in offshore low-energy environments</span>
1. All the galaxies are moving away from each other, suggesting that they all came from the same place in space. (the red shift)
2. There was cosmic microwave background radiation in space that was predicted by the big bang model.
3. The abundances of the elements can be explained using the big bang theory.
I think the correct answer would be Grow Cover Crops
I hope this helps !