Across
- 4. All living things on Earth, including plant and animal life on land and in sea
- 6. __________ National Park is home for various wildlife.
- 7. an example of a public train service in Singapore.
- 10. Layer of gases and tiny particles that surround the Earth.
- 11. Housing refers to _____________ or buildings developed by people to shelter themselves from the elements.
- 12. an example of a public bus service in Singapore.
Down
- 1. Refers to equipment, infrastructure and networks that support the movement of people and goods from one location to another.
- 2. All forms of water on the Earth and in the atmosphere.
- 3. The solid layer of rock that forms the Earth’s surface.
- 5. An example of a gas
- 8. An example of a lithosphere landform in Arizona, _______
- 9. Water _____ is a process which all forms of water on Earth is represented.
