Ecology is the study of interactions between the environment and living creatures.
The idea that the government should care for and protect its people.
The slave owner did not have any manumission over his slaves
The terrorist´s main goal in committing the September 11, 2001 attacks was to cause terror within the frame of massive casualties in a scenario happenning inside the United States. Seen as a symbolic goal, it is rooted in many causes as stated by some of the terrorists´leaders, like the support of Israel by the United States; United States military presence in Saudi Arabia,etc.
C is the answer to this question