the were several reasons for USSR decline.
1. the Economic Breakdown. USSR could not manage the economy well it put a lot of burden on its slow growing economy. their expenditure were more then their revenues. it was in proxy wars in various regions which proved costly to it.
2. Arms and Nuclear Race. USSR was in competition with USA in arms and nuclear race which was very expensive at that time with not developed technology. it burdened the economy more. it was not a success at first, many attempts were made to get success
3. Ideology. USSR's Ideology was the other reason for its decline. because their policies were very rigid and harsh. the decisions were carried out single highhandedly supreme leader. ideology (Communism) was very harsh and repressive.
4. harsh control and brutal policies lead to weak control of the other States so in DEC,1991 Soviet Union disintegrated into 15 countries.
Imposing of tariffs meant that European countries could not sell goods in the U.S., so they imposed their own tariffs, resulting in a decline of worldwide trade.
Trenches were dug in a zigzag pattern so that if an enemy entered the trench, he could not fire straight down the line. ... The main trench lines were connected by communicating trenches, allowing for the movement of messages, supplies, and soldiers and were lined with barbed wire.
Answer:
c. the laws follow the state constitution.
First, an unskilled worker can be easily replaced but another factor would be for the simple fact the manager most likely has the most experience in the field.