I do believe it's all of the above. Although, it might not be trouble sleeping. That might be true in some cases, but not in all.
Answer:
A. Walking in the same direction as moving traffic.
Explanation:
Why would you, do that in the first place? The other options all seem like safe precautions to do.
Should be C I think.. because you can lessen the risks of lung cancer, etc. by avoiding tobacco.
Answer:
The bend test is a simple and inexpensive qualitative test that can be used to evaluate both the ductility and soundness of a material. It is often used as a quality control test for butt-welded joints, having the advantage of simplicity of both test piece and equipment.
Explanation:
~Hello there!
Your question: Gas exchange in the lungs is facilitated by: ___________.
Your answer: Gas exchange in the lungs is facilitated by adequate amount of surfactant.
Any queries ^?
Happy Studying! :D
