A dark cloud can be detected if it happens to block the light emitted by more distant stars.
Correct Answer:
Verified
Q15: Emission nebulae appear red because they are
Q16: The H I regions are mapped by
Q17: The gas in the interstellar medium consists
Q18: The compositions of dark clouds can be
Q19: Emission nebulae are blue.
Q21: Interstellar gas is composed of:
A)only hydrogen.
B)90% hydrogen,
Q22: Due to absorption of shorter wavelengths by
Q23: Molecular hydrogen can best be detected by
Q24: The overall dimming of starlight by interstellar
Q25: The relative density of dust to gas
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents