Scientists<span> can tell by observing the seismic waves that are recorded all over the surface of the </span>earth<span> from distant earthquakes. The seismic waves are reflected (bounced off) </span>layers<span> of different density, and they are refracted (bent) when they enter </span>layers<span> of different density.</span>
Answer:
dramatic changes occurred in the way people lived
What are the options for the question?
Answer: Indonesia
Explanation:
It has 147 volcanoes in which 76 are still active.
Answer:
Alice wants to use a three-step process to summarize a text she has read. She starts by determining the most important point. What is her second step?
including supporting details
identifying key words
writing a conclusion
putting the main idea into words
Explanation: