Drones are versatile enough that they will likely be used to perform
+ tons of specialized tasks in the future, even more than they already do
+ now. Drones have also been used in the military for a long time. Here's
+ a few drones in flight:
Drones can be used for so many things, such as: delivery,
+ military operations, photography, mapping out unexplored areas,
+ farming, or just as a fun hobby. I've even heard of drones being
+ used to put out fires
+
Speed
+
Drones can easily cover long distances in a very short amount
+ of time
+
+
Challenges to Overcome
+
+
Weather
+
All-weather drones are difficult to build and often can't
+ withstand extreme weather conditions
+
Maintenance
+
Drones have many complex parts, these often need to be fixed
+ or replaced
+ 
+ 
+ 
+