Complex sentence: Niger covers a land area of almost 1,270,000 km 2, making it the largest country in West Africa, with over 80 percent of its land area covered by the Sahara Desert.
Split into simpler sentences: Niger covers a land area of almost 1,270,000 km 2, making it the largest country in West Africa. Over 80 percent of its land area covered by the Sahara Desert.