Which portion of the heart, when weakened by a heart attack, is responsible for causing fluid to back up into and engorge the lung tissue?
A) Right atrium
B) Left ventricle
C) Right ventricle
D) Pulmonary vein
Question 2
Inhaling smoke from a wood fire creates a risk of _____ gas poisoning.
A) carbon dioxide
B) carbon monoxide
C) cyanide
D) methane