In what way is the bar graph better than the pictograph?

Monthly salaries of 5 workers are shown in the pictograph given below: What is the scale used in the pictograph?

In what way vermy compost is better than chemical fertilizer.

In what way is vermi compost fertilizer better than chemical fertilizer?

The bar graph consists of

What is the shape of the graph ?

Say true or false and why? In a bar graph, the bar which has the greater length indicates mode.