Answer:
causes poverty for people and declines the structure of the economy
Explanation:
people who survive by commercial farming are unable to grow crops and animal rearing for selling as their way of earning income for their families.
As for the economy, it declines very bad that the country too becomes affected. The trading from the country to the other countries becomes disrupted. This also affect the incoming of foreign currency in the country.
Answer:
Scientists are able to understand Earth's interior by studying seismic waves.
Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.
