You want to figure out more about the atmosphere of a new planet so you have measured the star's absorption spectrum during the planet's transit. Using the sample spectrum of elements and the spectrum from the star observed, which two elements would be found in the planet's atmosphere?

Question 17 options:

A)

Iron and oxygen

B)

Hydrogen and sodium

C)

Oxygen and magnesium

D)

Hydrogen and oxygen

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.