What condition occurs due to right-sided and left-sided heart failure, respectively?
Right-sided heart failure leads to , whereas left-sided failure causes .

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

What are the student's observations and inferences before he starts his investigation?