B. Intercropping
Explanation: I personally thought that it just made sense because the prefix inter means to combine, but when I looked up intercropping it showed the definition similar to the one shown in the photo. I also looked up all the others to be completely sure and none of the others have a definition close to the one shown.
The answer is D. As the bacteria is antibiotic resistant, it becomes harder to treat.
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It is used in measuring the humidity in the air or in gas
A, because they acts as catalysts in the chemical reactions crucial for life within organisms
