<span>Ireland’s decision to adopt the euro resulted in a rise in inflation.</span>
The answer is Contour lines
The only disadvantage I could think of would be price of equipment needed to produce energy from the source (i.e. price of solar panels)
<span>B. they needed access to bodies of water for trade
Water and aquatic access was necessary for water as well as access to trade.
Hope this helps :)</span>
