The image below shows a certain type of global wind: What best describes these winds?
A. Trade winds blowing in a curved manner due to the rotation of earth.
B. Polar easterlies blowing in a curved manner due to the Coriolis Effect
C. Polar westerlies that curve due to air above poles being relatively cooler.
D. Jet streams that curve due to air above equator being relatively warmer.

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.