Answer:
Star 1 is helium
Star 2 is sulfur
Star 3 is carbon
Its pretty simple you just have to look st the lines and match their position with the numbers provided
Mark brainlyest plz
Swinging needs to be the first skill mastered
Answer:
D
data as proportions of a whole
Half-life<span> is defined as the time it takes for one-</span>half<span> of the atoms of a radioactive material to disintegrate. </span>Half-lives<span> for various </span>radioisotopes<span> can range from a few microseconds to billions of years.</span>