deciduous forest biome<span> occupies most of the eastern part of the United States </span>
Distribution of mineral deposits, all other options are related to its climate.
Answer:
3 half live have passed.
Explanation:
After 1 half-life , 500 g of the parent isotope will remain. After 2 half-lives , 250 g of the parent isotope will remain. After 3 half-lives , 125 g of the parent isotope will remain.
