Which of the following is not an agent of chemical weathering?
a. lichens
b. acid rain
c. salt water
d. moving water

d. moving water

Explanation:

All are characterized by the process of chemical weathering which includes the Lichens, acid rains, salt waters. excerpt the moving water that is in not a major element of chemical watering and the water that falls from rain clouds and moves gradually does not cause weathering as compared to the salts that act as tools of the chemical weathering process and the lichens that create chemical and acidic environments for weathering to take place.

Answeroil-shale;

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