Question 154·Easy·Command of Evidence
A climate scientist studied seasonal upwelling along a coastline. Upwelling occurs when cold, nutrient-rich deep water rises to the surface, which can affect local ocean conditions. The graph shows the percentage of days in each season during which upwelling was observed.
According to the graph, about what percentage of days in summer had upwelling?
For graph-based command-of-evidence questions, first identify exactly which category the question asks about (here, Summer). Then read the value directly from the axis scale, using the nearest tick marks to estimate. Finally, choose the option that matches that estimate rather than doing any extra interpretation.
Hints
Use the x-axis first
Find the bar labeled Summer on the x-axis.
Match to the y-axis scale
Look at which y-axis tick mark the top of the Summer bar is closest to.
Choose the closest estimate
Pick the answer choice that best matches that approximate percent.
Step-by-step Explanation
Locate the season
Find Summer on the x-axis of the bar chart.
Read the bar height
Trace the top of the Summer bar across to the y-axis scale labeled in percents.
Select the closest choice
The Summer bar lines up with about 70%, so the best answer is About 70%.