Question: Which religion is most prevalent in Asia?
SQL: SELECT T4.Name FROM continent AS T1 INNER JOIN encompasses AS T2 ON T1.Name = T2.Continent INNER JOIN country AS T3 ON T3.Code = T2.Country INNER JOIN religion AS T4 ON T4.Country = T3.Code WHERE T1.Name = 'Asia' GROUP BY T4.Name ORDER BY SUM(T4.Percentage) DESC LIMIT 1