Which two pieces of evidence most directly support the idea that during the first moments after the big bang, light elements formed from the original energy present? a. the abundance of helium in the universe and einstein's mass-energy equivalence b. einstein's mass-energy equivalence and the redshift of light from galaxies c. the abundance of helium in the universe and the uniform distribution of cosmic background radiation d. the redshift of light from galaxies and the uniform distribution of cosmic background radiation

The abundance of helium in the universe and Einstein's mass-energy equivalence

Explanation:

Science holds that light elements such as helium and hydrogen were formed in the stars immediately after the big bang. Furthermore, Einstein's mass energy relationship shows that energy from the big bang was required to fuse hydrogen nuclei to form helium hence nucleosynthesis commenced.

Other elements were formed after the light elements were formed.

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .