Which statements are true regarding scientific evidence supporting the big bang theory?

a.) cmb radiation and a very early form of helium were discovered.
b.) the universe has structure and uniformity.
c.) redshift of distant stars and galaxies indicate the universe continues to expand.
d.) sound waves of an explosion are heard light years away.

The correct answers are option A.) "CMB radiation and a very early form of helium were discovered" and option C.) "Redshift of distant stars and galaxies indicate the universe continues to expand". The big bang theory states that the origin of the universe as we know it is the result of the expansion from a very high-density and high-temperature state. Scientific evidence that support this theory are: Cosmic Microwave Background (CMB) radiation as is thought to be leftover radiation from the original explosion because it spreads uniformly in the universe; a very early form of helium, as helium is one of the first elements formed after the big bang and; a redshift in light observed in the Hubble that indicates that the objects are moving away from the observers.

map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.

back in the area of iowa even though you were found in florida there is a system that they dont want to tell you about where they can go fish for you in other states and bring you back to be tried in front of the crime scene so your location

plz mark brainliest i would appreciate it btw i live in michigan too xd