Write a summary about the movie "Wall E" and what it says about how human impact on our climate changed the world. What do you think could be done differently now so our world DOES NOT have the same fate? One - two paragraphs (4-6 sentences per paragraph.

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.