Question

question 12 of 19 > which of these statements are true of molecular clouds in the milky way and which are false? true false answer bank detected using tracer molecules such as co can contain up to a hundred solar masses of gas supported by pressure from nuclear reactions composed of mainly hydrogen can be up to the size of the solar system can collapse due to their own gravity

Explanation:

Molecular clouds in the Milky - Way are mainly composed of hydrogen. They are detected using tracer molecules like CO as hydrogen itself is hard to detect directly. They can be much larger than the Solar System and can contain far more than a hundred solar masses of gas. They are not supported by pressure from nuclear reactions (nuclear reactions occur in stars formed from them). And they can collapse under their own gravity to form stars.

Answer:

True: detected using tracer molecules such as CO, composed of mainly hydrogen, can collapse due to their own gravity
False: can contain up to a hundred solar masses of gas (can be much more), supported by pressure from nuclear reactions, can be up to the size of the Solar System (can be much larger)