TASK DEFINITION: In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
PROBLEM: Quartz can very easily damage (A) smelted silica (B) granite (C) diamonds (D) steel

SOLUTION: A

PROBLEM: If a thing has a good impact on nature, it is most likely (A) putting plastics in special containers (B) burning old used tires (C) putting cigarettes out in ponds (D) using aerosol air fresheners

SOLUTION: A

PROBLEM: Over the lifetime of the planet hydro mechanical wearing will create a (A) crevasse (B) ocean (C) drought (D) water park

SOLUTION:
A