Answer:
Separating Mixtures
The components of a mixture keep their own identity when they combine, so they retain their physical properties. Examples of physical properties include boiling point, ability to dissolve, and particle size.
Answer: trachea bronchi bronchioles alveoli
Explanation:
SAT tests are created to confuse you, but don't worry! Here's my answer: Identifying an alternate route before you need one. Every Uber or Taxi driver is forced to do so before taking a road. Hope this helps!