Which statements are true and support the Big Bang Theory, true or false: 1. Red shift of light from galaxies as they move further apart.
2. Cosmic Microwave Background Radiation's uniform temperature.
3. Blue shift or light from luminous objects moving toward observer. 4. Cooling of the universe as it expands from a dense singularity. 5. Dark matter makes up the majority of matter in the galaxy.
1. True. The red shift of light from galaxies as they move further apart is one of the key pieces of evidence that supports the Big Bang Theory. This phenomenon suggests that the galaxies are moving away from each other and the universe is expanding.
2. True. The Cosmic Microwave Background Radiation (CMBR) is observed to have a very uniform temperature across the sky, which supports the Big Bang Theory. According to the theory, the CMBR is the remnants of the radiation from the early stages of the universe, when it was hot and dense.
3. True. The blue shift of light from luminous objects moving towards an observer is also consistent with the Big Bang Theory. As the universe expands, some objects can move towards each other due to gravitational attraction, resulting in a blue shift of their light.
4. True. The Big Bang Theory proposes that the universe started from a dense singularity and has been expanding ever since. As the universe expands, it cools down, which is supported by observations such as the cosmic microwave background radiation.
5. False. Dark matter is believed to make up a significant portion of the total matter in the universe, but not necessarily the majority of matter in galaxies. Dark matter's presence is inferred from its gravitational effects on visible matter, but its exact composition and distribution are still not well understood.