Separating fluids, such as blood, is best accomplished using: evaporation crystallization centrifugation adsorption

In all living cells dna controls cellular activities by

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?