# CHILD DEVELOPMENT PEDAGOGY

## GROWTH DEVELOPMENT CHILD

### SUMMATIVE ASSESSMENT

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
seismic waves show us where one layer ends and another begins by their ____ choose two
 A pressure B speed C path or how they bend D temperature E length
Explanation:

Detailed explanation-1: -Seismic waves travel a curving path through the earth due to changes in composition, pressure, and temperature within the layers of the Earth. Seismic waves travel at different speeds through different materials. In this 2-layer model two wave fronts leave an impact at the same time but the lower layer is faster.

Detailed explanation-2: -Types of Seismic Waves The two main types of waves are body waves and surface waves. Body waves can travel through the Earthâ€™s inner layers, but surface waves can only move along the surface of the planet like ripples on water. Earthquakes send out seismic energy as both body and surface waves.

Detailed explanation-3: -The bending of seismic waves is called refraction.

Detailed explanation-4: -Seismic waves travel more quickly through denser materials and therefore generally travel more quickly with depth. Anomalously hot areas slow down seismic waves. Seismic waves move more slowly through a liquid than a solid.

There is 1 question to complete.