Because<span> the surrounding </span>mountains<span> contain very little soil, and nutrients are easily washed into </span>the lakes<span>, which could cause algae blooms
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A. They have the greatest oil reserves
<u>ANSWER:</u>
Artificial levees are 'earthen mounds' built on the river banks to increase the 'volume of water' the channel can hold.
<u>EXPLANATION:</u>
- A levee or stop bank is called as a 'natural or artificial wall' or a bank which is used to protect the flooded water in a certain area and these Levees are made from the compact earth.
- There are two type of levee, artificial and natural. Artificial levee often seems to get damaged which may cause breach.
The correct answer is turkey
