Hey this doesn’t make sense to me In the graphic provided, you see bars for major plant nutrients. The thickness of the bar indicated the availability of each nutrient at a given pH. Wider sections indicate that nutrient is more available at the pH indicated while constrictions indicate a nutrient being "tied-up" or unavailable at the indicated pH. 

1) From looking at the graphic, which nutrients appear significantly less available at a "strong acidity"?

2) Which nutrients appear significantly less available at a "strong alkalinity"?

3) What would you say is the idea pH to have the greatest range of essential plant nutrient most available?