Explanation?

Comments

• lpadr009 Free Trial Member

  September 2015 379 karma

  For what problem??
• anupama.satyasai Member

  September 2015 20 karma

  The french divers problem
• 1 Like

  Pacifico Alum Inactive ⭐

  September 2015 8021 karma

  When you have a specific question it is best to cite the PT #, Section #, and Question #, as some questions or passages cover similar topics. Not saying it's the case here but it helps people come to your aid more quickly.
• c.janson35 Free Trial Inactive Sage Inactive ⭐

  September 2015 2398 karma

  PT20/1/1:
  
  The Cave is completely filled with water, and yet it is filled with stalagmites. How are stalagmites formed? Water drips from the ceiling onto a single spot and, over time, the mineral deposits form pillars.
  
  Wait, how could water drip from the ceiling of the cave if it were completely filled with water? The only way this is possible is if the water in the cave was lower when the pillars were formed! This is exactly what B says: the water in the cave is higher now than it once was.
  
  
  Hope this helps!
• NYC12345 Alum Inactive Sage

  September 2015 1654 karma

  I believe the OP is referring to PT 20 Section #1 Question 1
• NYC12345 Alum Inactive Sage

  September 2015 1654 karma

  The stimulus states that there are stalagmites, which form when drops of water fall on a cave floor. This means that there used to be parts of the floor, which were not covered with water, which makes "B" correct.
• anupama.satyasai Member

  September 2015 20 karma

  Wow thanks! That was super helpful @c.janson35 and @alexandergreene93
  Sure. I shall shall do that from the next time around! @Pacifico