Water freezes in the cracks of rocks and then expands, breaking the rocks apart. This is an example of A) biological weathering
B) chemical weathering
C) erosion
D) frost wedging or ice wedging

B. chemical weathering. This involves different substances

Explanation:

the author is showing that it is the insatisfaction of basic needs that brings about the protests such as the strikes.if workers do not earn enough to buy food and feed their families and themselves in order to continue working, what is the use of working? besides, another message from the author is that of the owners of factories should be worried about ensuring their furure by having a second and third generation of workers in their industries.if they do not hear the workers demands, they will not have any more workers to make their pockets full.

"a" because he is appealing to logic as oppose to appealing to the audience's emotions.