Check this site out it helped me A LOT!
https://en.wikipedia.org/wiki/European_migrant_crisis
Answer:
Tors are landforms created by the erosion and weathering of rock; most commonly granites, but also schists, dacites, dolerites, ignimbrites, coarse sandstones and others. Tors are mostly less than 5 meters (16 ft) high.
<span>Because iron is dense - a small volume or amount weighs a lot compared to other materials</span>
The word “terrorism” was first introduced after the French Revolution