Textbook Questions
| 1. |
Layer of the earth
Difficulty: medium |
4
|
| 2. |
Earthquakes
Difficulty: medium |
4
|
| 3. |
Lightning
Difficulty: medium |
4
|
| 4. |
Electric discharge
Difficulty: medium |
4
|
| 5. |
Precautions for earthquake
Difficulty: medium |
2
|