ILL MARK AS BRAINLESS PLS HELP HUU

1) Navy SEALs are named after the environment in which they operate, the Sea, Air, and Land

2) Kennedy in 1962, the Navy SEALs are a nimble, elite maritime military force suited for all aspects of unconventional warfare.

3) a, d, e

dont trust me tho, wait for someone else to verify xD

Explanation:

1. Navy SEALs are named after the environment in which they operate, the Sea, Air, and Land

2.they established the 1st military and they gather intelligence from their enemies

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long  

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).