Question

question 7 of 20 which search would best narrow down our results for this research question? what is the life span of a pet salamander? a. pet and salamander b. life span or salamander c. life span and pet or salamander d. life span and pet salamander

Explanation:

To narrow down search results for the life - span of a pet salamander, we need to include all relevant key - words. "AND" is used to combine key - words and get more specific results. Option D includes "life span", "pet", and "salamander" which are all relevant to the research question. Option A lacks "life span", option B uses "OR" which broadens results, and option C has an incorrect combination of "OR" and "AND" that won't give the most specific results.

Answer:

D. life span AND pet salamander