B. It's less dense. Ice floats<span> because it is about 9% less dense than liquid water.</span>
        
                    
             
        
        
        
Answer:
Rock formation is an isolated, scenic, or spectacular surfure rock outcrop. Rock formation usually is the result of weathering and erosion sculpting of an existing rock. The term rock formation can also refer as specific sedimentary strata or other rock unit in stratigraphic and pathologic studies. 
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Law of demand
The regulation of demand  for states that because the rate of a great decrease, the amount demanded of that correct increases.
<h3>What are the five Determinants of Demand?</h3>
The five determinants of demand are:
- The rate of the goods or service.
- The earnings of consumers.
- The expenses of associated items or services—both complementary and acquired together with a selected item, or substitutes sold rather than a product.
- The tastes or alternatives of customers will pressure demand.
- Consumer expectancies about whether or not charges for the product will upward push or fall withinside the future.
For combination demand , the wide variety of customers withinside the marketplace is the 6th determinant. 
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The Circuit-Level involves the spinal cord.