Aracecar begins its first lap on a racetrack. after seven seconds, it is 140 meters further east. what is the average velocity of the racecar?

As a small change in a person's dna can cause a genetic disorder

How does human environment effect the biosphere

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities