Katrina is a teen from australia who participates in curling, a sport in which players slide stones across the ice toward a target. katrina learned about the popular canadian sport by watching the olympics. what katrina learn about curling

70 % i think is the answer.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.