Topic
| Code | 20000431 |
|---|---|
| Name | energy resources |
| Description | Such resources as coal, gas, wind, sunlight etc., used to generate heat, electricity and power |
| Lft | 25 |
| Lvl | 2 |
| Rgt | 26 |
| Code | 20000431 |
|---|---|
| Name | energy resources |
| Description | Such resources as coal, gas, wind, sunlight etc., used to generate heat, electricity and power |
| Lft | 25 |
| Lvl | 2 |
| Rgt | 26 |