Asurvey in a magazine that asks readers to return the survey would result in: a. results bias b. word-choice bias c. questioner bias d. voluntary-response bias answer asap (25 points)

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.