What does it mean to say that the senators and representatives represent the people

Do humans change their physical environment to adapt or do humans adapt themselves to their physical environment?

Ineeed the answer asap which of the following describes the link between u. s. foreign policy and the rise of islamic extremist leaders in afghanistan during the late 20th century? apex

How might the first nations have reacted when they saw that the europeans were moving onto their lands and disrupting their way of life? (this was when the europeans came to canada and tried to claim land to themselves)