This is the right one
<span>c.
hydroelectric power.</span>
They're used by humans for fossil fuel and in entertainment. They were not created by the human race, they were created through thousands of being underground and soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
A strong belief in nationalism, I goodled it :)
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The groups of invaders that made the most limited incursions in the Roman Empire were the Franks.
The Franks were one of the Germanic tribes that tried to incursion the Roman Empire territories. As it is said above, the Franks were not a tribe that repeatedly invaded the Roman Empire territory, but indeed had some incursions.
The Franks inhabited the territories of the Lower Rhine and some others lived next to the Ems River. They were known to be fierce warriors and determined people that invaded some other regions as was the case of modern-day Belgium and the North of France.
In every society, the government needs to have what are called police powers. What this means is that the governments need to have the right to uphold the laws. Governments need to have this ability so that they can protect their citizens from others who would seek to prey on them. Without police powers, for example, there is no one to protect us from being murdered or robbed, or otherwise harmed.
The problem is that the government can take away our rights in the process of trying to protect us. For example, let us imagine that the government is worried about drug use. It therefore declares that it has the right to test any person for drug use at any time. It also declares that it has the right to search anyone’s house at any time for evidence of drug manufacture, sale, or use. This would be great for law and order because it would make it much harder to get away with drug crimes, but it would be terrible for our rights.