Answer:
1. Isolationism is a national policy of avoiding involvement in the national affairs of other countries. Ming changed china by building projects, and instituting isolationism
2. The advantages to isolationism were that they had a less chance of being ruled by foreigners again. At the same time, this period of isolationism, weakened the empire and resulted in a collapse.
Explanation:
Answer:
The answers are:
1. crushed rock roads
-- a) made land travel quicker, safer, more enjoyable
2. steam locomotives
-- d) made distribution quicker, cheaper, and easier on land.
3. canals
--b) made distribution cheaper and easier, eliminated delays between water routes
4. steamboats
--c) quickened distribution, lowered transportation costs on water
Explanation: