Question 1:
Crop ....... is when small, low-flying planes release chemical pesticides onto large crops like grain fields. These*^*planes are able to evenly release a lot of pesticides at one time but the job is dangerous because the pilots have to*^*fly so close to the ground.
A. merging
B. spilling
C. dusting
D. _

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Real Life: Environmental Terms (8) | C1 – Advanced