Across
- 3. Environer meaning ________.
- 4. Exchange of goods without the use of money.
- 6. It protects us from harmful rays and heat of the sun.
Down
- 1. Solid crust,covered with soil,Mountains,plateaus, plains.
- 2. It is a combination of natural and human made phenomena.
- 5. The relation between living organisms and surroundings.
