This is false.
Earthquakes in South and Central Asia cause a lot of problems with things like tsunamis or similar destructive forces of nature.
The correct answer is letter D. an economy based on trade. The people who migrated to Melanesia developed <span>an economy based on trade. Before the time of currency was used, people back then do trading with their property they own if they want to have something. It's like the same as the barter system or the barter economy.</span>
The correct option is this: THE ENERGY IS TRANSFERRED TO WAVES IN THE SURROUNDING WATER.
According to the law of conservation of energy, energy can neither be created nor destroy. This law is valid in all systems including biological systems. When a dolphin jumps, some of the potential energy that are converted to kinetic energy is lost to the fish, but this lost energy is gained by the waves in the surrounding water. So, in the real sense, the energy is not lost but converted to another form.
a) The inscriptions provide us valuable information which could not be tampered or modified. Thus inscriptions are the most important sources for constructing the history of a particular region. Inscriptions are more important than coins in historical reconstruction.
b)Most of the kingdoms of the medieval period rose to power and fell frequently. This was because most of the kingdoms, empires were constantly engaged in power struggle amongst themselves.
