c. A dam can significantly reduce or shut off the supply of sediment to a delta.
Explanation:
The rivers that drain into the ocean have deltas and they form the mouth of the river and the soil rich land is a called as the delta. The dam can significantly stop or shut the supply of the sediments to the deltas.
Labour intensive intertillage is reffered to the intensive use of very large labour for agriculture and this is very common in China in South East Asia because of their very high population
<span>Supposedly at Jamestown but there are lots of theories about Norsemen (Vikings) travelling there in the 9th and 10th centuries and establishing settlements in Nova Scotia
