- Building Materials - Section 1
- Building Materials - Section 2
- Building Materials - Section 3
- Building Materials - Section 4
- Building Materials - Section 5
- Building Materials - Section 6
- Building Materials - Section 7
- Building Materials - Section 8


Building Materials - Engineering
Q1: Based on its dry weight, a freshly felled tree may contain waterA
25%
B
50%
C
75%
D
100%
ANS:B - 50% A newly felled tree contains water and sap (plant juice) both about 50% of its own dry weight>>>>. |


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