Question

question 6 of 20
a student is asked to conduct a search on climate change and the
contribution of greenhouse gases. the student, however, would like to avoid
results that explain how a greenhouse works.
which boolean search would return the most useful results?

a. using not before a keyword: greenhouse not gases

b. using quotation marks around the single word \greenhouse\

c. using and between the search terms: greenhouse and gases

d. using or between two key words: greenhouse or gases

Explanation:

• Option A: "greenhouse NOT gases" would exclude results with "gases", which is not what the student wants (they need info on greenhouse gases' role in climate change).
• Option B: Quotation marks around "greenhouse" just searches for the exact word "greenhouse", not addressing the need to connect to "gases" or exclude info about how greenhouses work.
• Option C: "greenhouse AND gases" combines the two key terms, focusing on the relationship between greenhouse and gases (relevant to climate change contribution) and avoiding results about how greenhouses work (since those likely don't include "gases" in the relevant context here).
• Option D: "greenhouse OR gases" would return results with either term, which is too broad and includes irrelevant results about greenhouses (without the gas connection) or gases (without the greenhouse context).

Answer:

C. Using AND between the search terms: greenhouse AND gases