Answer:
Option-B
Explanation:
In the given question, the condition of the person is mentioned which says that he felt breathless while walking and later while lying down.
The most probable reason for the condition in the give question is that this condition is the result of the failure of the left side of the heart as the left side of the heart that is right atrium receives the oxygenated blood from the lungs and then left ventricle pump the blood to the body.
Since the person is not able to breathe therefore the volume of the lungs is occupied by something in the given case is blood due to the failure of the left heart.
Thus, Option-B is the correct answer.
Choosing to not use tobacco is the start to leadership and control over how you want to live the rest of your life. You stay looking young, healthy, and you're not at high risk for developing cancer in your heart or lungs. Many tobacco users age quicker, lose their voice, develop cancer, have severe kidney problems, and can even result in death.
That's my answer :) hope it works!
C. moving food through the body and transporting air through the body
Pollution is something that is harmful for our environment. We can prevent it by not driving so much or wasting stuff.
Hope this helps
God bless you
Have a great day
-Kayla <3
Adenine forms adenosine when connected ribose.