Answer:
definition: Seismic waves are energy waves that travel through the Earth's layers, generated by earthquakes, volcanic activity, or man-made explosions. They help scientists study the Earth's internal structure by analyzing how these waves move through different materials.
main type: The main types of seismic waves are:
1. **Body Waves**: These include P-waves (Primary waves) and S-waves (Secondary waves) that travel through the Earth's interior.
2. **Surface Waves**: These include Love waves and Rayleigh waves that travel along the Earth's surface.
sub type:
Seismic waves are primarily divided into two main categories, each with subtypes:
1. **Body Waves**:
- **P-waves (Primary waves)**: Compressional waves that move through solids, liquids, and gases.
- **S-waves (Secondary waves)**: Shear waves that move only through solids.
2. **Surface Waves**:
- **Love Waves**: Horizontal shear waves that cause side-to-side ground motion.
- **Rayleigh Waves**: Rolling waves that create an up-and-down motion similar to ocean waves.
Explanation:
1.- **Surface Waves**: Travel along the Earth's surface, causing more damage (e.g., Love and Rayleigh waves).
- **Body Waves**: Travel through the Earth's interior, include P-waves (faster, compressional) and S-waves (slower, shear).
2.**Body waves** (P-waves and S-waves) are most useful for studying the Earth's interior because they travel through the Earth's interior layers and provide information about their properties.
