Anton is a geologist. He wants to get the best possible information about lava flows from eruptions that are happening at some specific locations around the world. He wants to be able to vary what he studies based on his initial findings. Which type of investigation should Anton conduct?

Battle of Zama, Victory of the roman's led by Scipio Africanus the Elder over the Carthaginians commanded by the Hannibal. The last and decisive battle of the second Punic War, it effectively ended both Hannibal's command of Carthaginian forces and also Carthage's chances to significantly oppose Rome.