A chemist tests a new fertilizer for plants to see if it makes them grow taller. Which is an inference of the investigation? A. Fertilizer A made all of the plants grow faster.

B. 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.

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =