Asearch engine is giving you too many sites that are not relevant to your topic, how cell phones change culture,
placing quotes around "cell phones change culture" gave only five results. what can you try next?
a change your key words
b. use an advanced search
c use a search directory
all of the above

A or B

Explanation:

A. Cause sometimes you need to change the key words in order to get the search you want.

B. Cause an advanced search can help sometimes.

its D

Explanation:

economic competition is inefficient and wasteful.good luck

explanation:

its many islands, high mountains, and remote peninsulas isolated population centers.