What is Geography?

1234567
Across
  1. 5. Is about Earth's land, water,and air.
  2. 7. Where the president live.
Down
  1. 1. A person who works in the field of Geography.
  2. 2. people need it for drinking, bathing, farming and cooking.
  3. 3. The capital of the USA.
  4. 4. Pierre L'Enfant nationality.
  5. 6. Pierre L'Enfant designed it.