'Climatic variations' and 'Human activities' can be regarded as the two main causes of desertification. removal of the natural vegetation cover（by taking too much fuel wood）, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.
Religion, customs, and history are all related to one another. Religion creates different customs, such as Christmas, Chanukah, and Ramadan. These customs are important parts of history
The United Kingdom is the answer :)
X would equal 5. (need more characters)
