Answer:

1. The belief that comets are associated with disasters is not supported by scientific evidence. While it is true that comets have been observed in the sky around the time of natural disasters such as earthquakes and volcanic eruptions, there is no causal relationship between the two events. Scientists have studied comets and have found that they are made mostly of ice and dust and do not have the ability to cause disasters on Earth.
2. The belief that asteroids can be used as talismans is also not supported by scientific evidence. Asteroids are simply small rocky bodies that orbit the sun, They are not capable of influencing events on Earth or affecting a person's luck.
3. The belief that bad luck and death will occur for people who see asteroids and comets is also not supported by scientific evidence. There is no scientific evidence to suggest that asteroids and comets are capable of causing bad luck or death. They are just celestial bodies that can be observed from Earth, but not capable of influencing human destiny.

In general, it is important to remember that scientific understanding is based on evidence and logic, and that many traditional beliefs and superstitions are not supported by scientific evidence.