Research analyzing the relationship between fitness and mortality indicates that the largest drop in premature mortality is seen between which two fitness groups? a. the average and excellent fitness groups b. the low and moderate fitness groups c. the high and excellent fitness groups d. the moderate and good fitness groups

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.