While Jessica, Ashley, and Bryan are snowboarding, they ignore warning signs indicating that they have left the marked trail and are entering dangerous territory. They become lost, and a rescue effort begins. Climbing the mountain, a snowplow accidentally cuts a nearby town's main electrical cable. Due to the loss of her electric heat, Ethel, an elderly woman, dies of hypothermia. The boarders' negligence in ignoring the warning signs is
The causation in fact, but not the proximate cause, of Ethel's death.

The boarders' negligence in ignoring the warning signs is: the causation in fact, but not the proximate cause, of Ethel's death.

Explanation:

Snowboarding is a game enjoyed during snow fall in winter season. It is recreational activity. A snow board is attached to the feet of the rider and slide in the snow-covered slope. It is important to notice the warning signs while snowboarding. It is a kind of dangerous game, so the instructions should be followed carefully.

In the above scenario, three friends went on for snowboarding. They haven’t notice the warning signs and entered into the dangerous zone. A snowplow accidentally cuts the electrical cable of nearby town, so electrical heat couldn’t be produced in that area. Ethel lost her life due to hypothermia.

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;