Asbestos..........................
Answer:
Coronary artery disease can reduce blood flow to the heart and cause heart attacks.
Explanation:
Coronary artery disease occurs when arteries suffer a blockage.
Coronary artery blockage is the main cause of heart attack since, as time passes by and due to certain substances as cholesterol, the coronary arteries undergo narrowing.
Cholesterol is the main cause of narrowing of the coronary arteries.
Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
Answer: B: You start to look at life with a positive outlook.
Explanation:
I got it right on Plato.
