Snowboarding is an extreme sport that involves riding a snowboard down snow-covered slopes, using bindings to attach the board to the rider's boots.

In rock climbing, a crack is a narrow fissure in the rock that climbers use their hands and feet to ascend.

BMX Freestyle is an extreme sport that involves performing acrobatic tricks and stunts on a BMX bicycle in a specially designed course.

In BASE jumping, BASE stands for Building, Antenna, Span, Earth, referring to the different types of structures from which BASE jumpers leap.

Surfing is an extreme sport that involves riding a surfboard on the surface of waves in the ocean.

In skydiving, freefall is the rapid descent of a skydiver after exiting the aircraft, before deploying the parachute.

Freestyle Skiing and Freestyle Snowboarding are extreme sports that involve performing jumps, tricks, and maneuvers on skis or a snowboard while descending steep mountain slopes.

In rock climbing, a belay rope is used to secure a climber to a fixed point, typically anchored to the ground or a rock formation.

Mountain Biking is an extreme sport that involves riding a specially designed mountain bike on rough terrain, often involving jumps, obstacles, and steep descents.

In BASE jumping, the main parachute is the primary parachute used to slow down the descent after jumping.

Hang Gliding and Paragliding are extreme sports that involve flying through the air using a specially designed wing and harness, allowing pilots to soar and glide over landscapes.

In rock climbing, balance is a crucial skill that allows climbers to maintain control and stability while moving on a rock face.

Skateboarding is an extreme sport that involves performing acrobatic tricks and maneuvers on a skateboard in a specially designed skatepark or on various urban obstacles.

In skydiving, body position refers to the skydiver's posture and alignment during freefall, which is crucial for stability and control.

Kiteboarding is an extreme sport that involves riding a specially designed surfboard on waves, using a kite to harness the power of the wind to propel the rider across the water.