A measurement of population per unit area
For example x amount of people in 1000 square feet
Answer:
The ecosystem is adversely affected.
Explanation:
The ecosystem is adversely affected due to clearing of all trees and bird population is also adversely affected because these trees are the source of habitat for these birds. When there is large number of birds in an ecosystem so the bird population automatically increases due to the presence of more habitat for the birds so if all the trees are removed so very little population of birds left in that ecosystem and this action leads to great disturbance in the ecosystem.
Employment opportunities tend to improve because trade liberalization leads to market expansion, technology sharing and cross-border investment flows. Political cooperation among countries can improve because of stronger economic ties, which can help resolve conflicts peacefully and lead to greater stability.
2nd answer ecological succession .. don't know about the first one