Question

section 2.4 representing data
in your textbook, read about graphing.
label each kind of graph shown.

1. sources of chlorine in the stratosphere

cfc - 12 28%
cfc - 113 6%
hcfc - 22 3%
cfc - 11 23%
methyl chloroform 10%
carbon tetrachloride 12%
methyl chloride 15%
hydrochloric acid 3%
manufactured compounds
natural sources
pie chart

1. precipitation in jacksonville (1961 - 1990)

average precipitation (inches)
months
bar graph
answer the following questions about the graphs.

1. what percent of the sources of chlorine in the stratosphere are cfcs?
2. during which month of the year does jacksonville usually get the most precipitation? the least?

Explanation:

Step1: Identify CFC - related percentages

From the pie - chart, CFC - 12 is 28%, CFC - 113 is 6%, and CFC - 11 is 23%.

Step2: Calculate total percentage of CFCs

Add the percentages of CFCs: $28 + 6+23=57\%$.

Step3: Analyze the bar - graph for precipitation

Observe the bar - graph of precipitation in Jacksonville. The bar for August is the tallest, so it has the most precipitation. The bar for May is the shortest, so it has the least precipitation.

Answer:

1. 57%
2. Most: August; Least: May