The Friday Brain-teaser from Credo Reference

The Friday Brain-teaser from Credo Reference - this week: Extreme Sports. Answers here.

1. Riding on land on a single flexible board, longer and wider than the foot, fixed with four small wheels on the underside.
2. A sport in which one throws oneself from a high place such as a bridge to which one is attached by an elasticised cord.
3. Technique of unpowered flying using air currents. The aeronaut is strapped into a carrier, attached to a sail wing of nylon stretched on an aluminium frame like a paper dart, and jumps into the air from a high place.
4. The sport of riding across snow standing on a wide single ski resembling a small surf board.
5. Mountain or rock climbing done without aids such as spikes and ladders, though usually with ropes and other safety equipment.
6. Racing on light toboggans, typically in a head-first position, on a dangerously winding, steeply banked channel of ice: named from a tobogganing course built each year at St Moritz, Switzerland.
7. A long-distance race on foot, usually 42.195km.
8. The sport of jumping from an aeroplane with a parachute and performing manoeuvres before opening it.
9. A water sport in which the participants ride on surfboards with a kite attached to their bodies to give propulsion and lift.
10. An extreme sport that emerged in New Zealand in the mid-1990s and that consists of hurling oneself down hills or fast-flowing streams in a large perspex ball