Answer:
They prefer temperatures between 20°C and 30°C.
Step-by-step explanation:
The bar graph shows the highest bacteria population to be 4 million, when the temperature is between 20 to 30 degree celsius. This is the highest bacteria population depicted by the bar graph at that temperature range.
Therefore, it follows that bacteria growth and multiplication is favored within that temperature range, as they tend to thrive better.
From the information displayed by the graph, we can conclude that: "They prefer temperatures between 20°C and 30°C."