Answer:
The cold climate makes it very difficult to grow many crops, there is also some worse weather conditions like lack of warmth, no rain, less heat,,etc. which makes the life very hard in the hill areas. Hope this helps! =)
Answer:
Smaller cities located on the edges of a larger city which often include residential neighborhoods for those working in the area are called_SUBURBAN
Helpful:
Cures for disease's
Helps us learn about everything around us.
Harmful:
Chemical Warfare
New atomic bombs etc...