Question

1. which boolean operator would increase your choices?

and, +
not, -
or, |

1. which boolean operator would you use if you wanted to search for \sea birds\ but not include penguins?

and, +
not, -
or, |

Explanation:

1. The OR operator combines results from different search terms, thus increasing the number of choices. For example, if you search for "dogs OR cats", you'll get results related to either dogs or cats.
2. The NOT operator excludes a particular term. So, if you want to search for "sea birds" but not include penguins, you use NOT. For instance, "sea birds NOT penguins".

Answer:

1. OR, |
2. NOT, -