A chemist tests a new fertilizer for plants to see if it makes them grow taller. Which is an inference of the investigation? O A. Fertilizer A made all of the plants grow faster.
OB. Adding more Fertilizer B did not affect plant growth.
C. Boron in Fertilizer C increased plant growth by protein synthesis.
D. When additional fertilizer D was added, the rate of plant growth increased.

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?