What is the elevation of the highest peak in Europe?

What is the highest peak in the European Alps? What is the elevation of the highest peak in Asia? Which country has the highest peak in Africa? What is the elevation of the highest peak in Australia? What mountain range is Mount Aconcagua a part of? What is the name of the mountain range that includes Mount Elbrus? In which continent is the Atacama Desert located? In which country is the Thar Desert located?