Why would the builders choose a flat spot to build a canal?

Excerpt from the trip of a lifetime elizabeth mohn 3 a little more than a week ago, my mother and father started packing our suitcases to prepare for our trip. my entire family woke up early sunday morning, packed the car, and began our expedition to niagara falls. when we reached the american-canadian border, i was excited to enter a foreign country for the first time. the third paragraph is mainly about a) traveling to niagara falls b) leaving the hotel. c) seeing the falls. d) returning home.

Find the value of 'a' and 'b' angle xqr is 180

From what alcinous says about phaeacia's ships, is there any chance that they will fail to get odysseus home? how do you know? answer in complete sentences.