Answer:
Trachea
Explanation:
Because it extends from the larynx and branches into the two primary bronchi
The answer is going to be the letter D, nitrogen. I hope this helps!!
////// it is 3 years ///////
Answer:
ability to rust, ability to burn
Explanation:
Ability to rust and burn are both chemical properties cuz both require reacting with oxygen/moisture to form.
Shining and bending are physical properties cuz you can just observe them without any reaction.
https://chem.libretexts.org/Courses/University_of_British_Columbia/CHEM_100%3A_Foundations_of_Chemistry/03%3A_Matter_and_Energy/3.05%3A_Differences_in_Matter%3A_Physical_and_Chemical_Properties
Try researching the discovery of microscopes and their impact on scientific discoveries, including cells!!!