D. Twenty countries whose people share a common religion and cultural heritage
Answer: b) earthquake activity
Options:
a) earth's density
b) earthquake activity
c) volcanic activity
d) atmospheric composition
Explanation:
Earthquake activity
: Seismic waves are responsible for the earth trembling during earthquakes. An earthquake occurs as seismic waves travel through the interior of Earth’s surface. A seismograph measures the characteristics of these waves such as how fast they travel as well as their strength.
By studying these attributes in different places, scientists come to understand the makeup of earth’s internal structure. The type of seismic waves most important to this study are body waves which travel through the earth’s interior
.
Answer:
Yes
Explanation:
When Sedimentary rocks are heated with tremendous heat and pressure, it will melt and be back again to magma. After some time it will cool and harden and will become Igneous rocks.
