You are presented with the question "Soil, sand, clay and limestone can form what?" and the following answer choices: 
- detritus
 - stalactites
 - swamp vegetation
 - coral reef
 - fossil fuels
 - Sediment
 - aqueous solution
 - growth

Now knowing that stalactites are formed by deposition and soils are sand, clay, limestone, and organic deposits, choose the best answer.


 

  stalactites       