When a person skis on ice, the ice under the ski melts due to the pressure exerted by the weight of the person. After the person moves from ice, the melted ice freezes again, thus leaving no trace behind.
The Pacific Crest Trail (P.C.T) is the longest trail in the world.
There is a trail left behind; it is only as wide as the sharp end of the blade. This trail can be seen quite easily if the ice is somewhat illuminated, or if viewed from an angle. For example, watch some Olympic or world championship skating on television (even ice hockey will do) and you can clearly indentify the many scratches in the ice surface,
The trail left behind in the sky is actually ice, when the air is so cold its below freezing the vapor turns into ice so quickly that it skips the liquid stage and creates a trail in the sky.
That trail is called a contrail, which is short for "condensation trail." It forms when water vapor from the engine exhaust condenses and freezes into ice crystals in the cold air at high altitudes.
Ice crystals of frozen exhaust particles.
There is no sport called ice skiing but there is ice skating and snow skiing.
The white line left behind a plane is called a contrail, short for "condensation trail." It is formed when hot, moist engine exhaust mixes with cold air at high altitudes, causing the water vapor to condense and freeze into ice crystals.
As the ice blocks left behind by the continental glacier melted after the last ice age, they formed bodies of water known as kettle lakes. These kettle lakes are depressions in the landscape caused by the melting of the ice blocks, which were then filled with water from the melted ice.
A boulder left behind by a retreating glacier is known as an erratic. A glacier is a moving river of ice and snow.
ye question kisne bheja hai? may I know?
Skiing
* Alpine skiing * Ice sledge hockey * Nordic skiing ** Biathlon ** Cross-country skiing * Wheelchair curling