Final answer:
Only certain statements restate the key idea that mishaps multiply when hot weather arrives. These include the increased frequency of drowning, the prevalence of mouth-to-mouth resuscitation for water-accident victims, and the occurrence of heat exhaustion due to overactivity in hot weather.
Step-by-step explanation:
The key idea that needs to be addressed is: "When hot weather arrives and the nation takes to the outdoors, mishaps multiply." Let's consider each statement in relation to this key idea.
- Drowning is the fourth most frequent cause of accidental death in the summer. - This statement does restate the key idea, as it provides an example of mishaps, specifically accidental deaths, increasing in the summer.
- Most people can learn to swim in ten short lessons. - This statement does not restate the key idea, as it talks about swimming lessons rather than the increase in mishaps.
- The majority of water-accident victims require mouth-to-mouth breathing. - This statement does restate the key idea by highlighting a consequence of water-related mishaps, which are implied to increase with hot weather.
- Heat exhaustion comes from overdoing in hot weather. - This statement does restate the key idea by explaining a specific type of mishap that happens due to hot weather activities.
- Dress in light-colored clothing to prevent heat strokes. - This statement does not restate the key idea, as it is a preventative measure against mishaps rather than an indication that they increase in hot weather.