B. Explain several different ways in which foods can become contaminated and how this can be prevented. Describe the symptoms of food poisoning and other illnesses that can result from ingesting contaminated food. What treatments are available?

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

need to see circuit to get time constant

compass can be used day and night, cloudy or sunny