A. Because it is better drained and better cultivated.
Q. Why does draining land promote warmth?
A. Because it diminishes evaporation; in consequence of which less heat is abstracted from the earth.
Q. Why does cultivation increase the warmth of a country?
A. 1st—Because hedges and belts of trees are multiplied;
2ndly—Because the land is better drained;
3rdly—Because the land is dug and ploughed; and
4thly—Because the vast forests are cut down.
Q. Why do hedges and belts of trees promote warmth?