There were 13

dynasties that ruled Ancient China for nearly

50

100

300

or 4000

years.

Geologists work in the energy and mining sectors searching for natural resources such as petroleum, natural gas, precious and base metals. They are also in the forefront of preventing and mitigating damage from natural hazards and disasters such as earthquakes, volcanoes, tsunamis and landslides.

Types of disasters usually fall into two broad categories: natural and man-made. Natural disasters are generally associated with weather and geological events, including extremes of temperature, floods, hurricanes, earthquakes, tsunamis, volcanic eruptions, landslides, and drought.

Hope this helps, have a great day/night, and stay safe