it's the first one hope this helps
The measure of how well your heart gets oxygen-rich blood to your muscles while you're exercising is called aerobic fitness.
Susan lived in a traditional family, where her father is the head of the household and his authority is absolute
The density of gold is 19.3 g/cm the density of iron pyrite is 5.0 g/cm if a nugget of iron pyrite and a nugget of gold each have a mass of 50 g, what can you conclude about the volume of each nugget