Question

question:
a group of scientists measures the
depth of a pond daily for one year.
which type of chart or graph are the
scientists most likely to use to show
how the depth of the pond changes
over the course of the year?

answer options:
select one of four
a bar chart
a line graph
a dot plot
a pie chart

Explanation:

To determine the appropriate chart, we analyze the purpose: showing how pond depth changes over time. A line graph is ideal for displaying trends over a continuous variable (time here). Bar charts compare categories, dot plots show individual data points' distribution, and pie charts show proportions—none suit trend over time as well as a line graph.

Answer:

B. A line graph