Compare the words local and linen. how are they alike? how are they different?

The words "local" and "linen" have two similarities, the first one is that they both start with an "L", and the second one is that they both have five letters. The difference between them is basically their meaning, local means belonging or relative to a particular area, and linen is a kind of fabric woven from flax fiber.

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).