Answer:
The dead sea is shrinking, and as it recedes, the fresh water aquifers along the perimeter of the lake are receding along with it. As this fresh water diffuses into salt deposits beneath the surface of the shoreline, the water slowly dissolves the deposits until the earth above collapses without warning.
D why are they going there because they need to know
The area just north of Lake Baikal is called the Irkutsk Oblast, where the city of Irkutsk is located (in Siberia).
Geography is land based areas and regions that were constructed by nature, (dirt,iron,ore) it relates to the construction industry because they used the materials nature has used to create the land.
