An interrelated market shows the relationships between supply and demand of goods that might be substitutes, complements, or derivates.
When the supply or demand of a good affects the supply or demand if another good there is a correlation between these goods. In this case there is a derived demand because the production of lumber has a strong impact in the production of homes.
Another example maybe the change on prices of steel and the production of cars.
One big barrier is economic background. Many students from immigrant parents often can’t afford college or have to work instead of going to school. Another difference can be the language barriers given that it’s harder to learn English than it is most languages because it doesn’t stick to grammar rules as much as others do.
The people of the nation should have the power to make that decision due to the fact that the leaders don't know everyone's struggle and that not everyone is being heard.
Galileo was known for being a astronomer. His greatest achievement was for discovering 4 moons of Jupiter. His work also fought conflict with the Catholic Church.