One would have to qualify for his or her home country.
shooting & cross-country skiing
That Olympic event is called the biathlon. Actually, in the Olympic biathlon, athletes cross-country ski and then shoot a rifle at a target. There is a variation of the biathlon called the archery biathlon where the athletes cross-country ski and then use a bow and arrow to shoot at a target, but although it is popular in certain countries (especially Canada and Russia), it is not an Olympic event.
Moldova sent 7 athletes to compete in alpine skiing, biathlon, cross country skiing, and luge at the 2010 Winter Games in Vancouver. They won no medals.
Biathlon consists of rifle shooting and cross country skiing. It would be a winter sport and there is competition in biathlon at the Winter Olympic Games. But, there are some biathlons that are on roller skis, but these are mostly training, and aren't really a sport.
Biathlon is a term used to describe any sporting event made up of two disciplines. However, biathlon usually refers specifically to the winter sport that combines cross-country skiing and rifle shooting. Other popular variants include summer biathlon, which combines cross-country running with riflery, modern biathlon and biathle, which combine running with swimming.
Biathlon equipment includes cross-country skis and poles, a small-bore rifle, and 5.6-mm (.22-calibre) ammunition.
The country that won the gold medal in the Women's Biathlon Relay in the Sochi 2014 Winter Olympics was Ukraine.
The Olympic, and for that matter, any, biathlon, consists of two events. In the case of the Olympics, these two events are cross-country skiing and rifle shooting.
Russia was the country that won the silver medal in the Women's Biathlon Relay event at the Sochi 2014 Winter Olympics.
Cross country skiing, and shooting
The country that received the bronze medal in the Women's Biathlon Mass start in the Sochi 2014 Winter Olympics is Norway.