What are natural state of disaster

Which best summarizes what scientists learned about how microbes benefit the human body? they are part of a normal human ecosystem. they have become less harmful to humans than they used to be. they process nutrients, fight disease, and accommodate change. they humans overcome the effects of antibiotics.`

Atrajectory has an initial velocity of 1,000 meters per second, and 5 seconds later, it has a velocity of 500 meters per second. which is the acceleration of the trajectory?

Analyze how jackson uses elements of a story to develop her message. for example, how does she create both certainty about charles' character and uncertainty in her audience about charles' identity? should laurie's parents have realized the truth earlier? how does jackson foreshadow the ending for her audience, while allowing for a surprise for laurie's parents? what is jackson's message about children and parents?