The following questions are based on the drawing of root or stem cross sections shown in Figure 35.2.

Figure 35.2
-As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover the tree has grown to a height of 30 meters. The nail is now __________ meters above the ground.
A)0.5
B)1.5
C)3.0
D)15.0
E)28.5

Question

The following questions are based on the drawing of root or stem cross sections shown in Figure 35.2.
  
Figure 35.2
-As a youngster, you drive a nail in the trunk of a young tree that is 3 meters tall. The nail is about 1.5 meters from the ground. Fifteen years later, you return and discover the tree has grown to a height of 30 meters. The nail is now __________ meters above the ground.
A)0.5 
B)1.5 
C)3.0 
D)15.0 
E)28.5

Quizplus · Accepted Answer

The nail was originally 1.5 meters from the ground, which means it was 1.5/3 = 0.5 meters from the base of the tree. If the tree has grown to a height of 30 meters, then the distance from the base of the tree to the nail is now 30 - 0.5 = 29.5 meters. Therefore, the nail is now 29.5 - 28 = 1.5 meters above the ground.

The Following Questions Are Based on the Drawing of Root