Question

1. look at the \emissions contributing to acid rain\. create a line graph (below) to display how sulfur dioxide (so₂) emissions have changed over time. create the graph by dragging the blue dots to the appropriate spot in the graph. after all of the data points are in place, use the line tool ⚑ to add lines between the data points. change the line color ⚑ to blue.

drag these points to the graph.
so₂ emissions over time
emissions (millions of tons)
1970
1980
1990
2000
2010
2020
5 10 15 20 25 30 35

Explanation:

Step1: Identify 1970 Data Point

For 1970, place the blue dot at the emission value. From the points, the first row (assuming 1970) has dots at 25, 30, 35? Wait, no, the grid: x - axis is emissions (5,10,15,20,25,30,35), y - axis years (1970,1980,1990,2000,2010,2020). The blue points: first 3 rows (1970,1980,1990) have 3 dots each (25,30,35? Wait, no, the top - left dot in the drag area: let's map. The drag points: first column (left) of drag points: 25, 25, 25? No, wait, the x - axis labels: 5,10,15,20,25,30,35. So each column in drag points: first column (leftmost) is x = 25, middle x = 30, right x = 35. Rows: first row (top) is y = 1970, second y = 1980, third y = 1990, fourth y = 2000, fifth y = 2010? Wait, the drag area has 3 rows (top 3) with 3 dots each and 2 rows (bottom 2) with 2 dots each. Wait, the graph has years 1970,1980,1990,2000,2010,2020. Let's align:

• 1970: drag the top - left dot (x = 25), top - middle (x = 30), top - right (x = 35) to 1970 row, x = 25, 30, 35.
• 1980: middle - left (x = 25), middle - middle (x = 30), middle - right (x = 35) to 1980 row, x = 25, 30, 35.
• 1990: bottom - left (x = 25), bottom - middle (x = 30), bottom - right (x = 35) to 1990 row, x = 25, 30, 35.
• 2000: the next row (fourth row in drag, left dot x = 25, middle x = 30) to 2000 row, x = 25, 30.
• 2010: the bottom - left and bottom - middle of the fourth row? Wait, maybe the drag points are:

• 1970: (25,1970), (30,1970), (35,1970)
• 1980: (25,1980), (30,1980), (35,1980)
• 1990: (25,1990), (30,1990), (35,1990)
• 2000: (25,2000), (30,2000)
• 2010: (25,2010), (30,2010)? Wait, no, the drag area has 3 rows (top 3) with 3 dots (x = 25,30,35) and 2 rows (bottom 2) with 2 dots (x = 25,30). So the years: 1970,1980,1990 (3 years) have 3 data points each (x = 25,30,35), and 2000,2010 (2 years) have 2 data points each (x = 25,30), and 2020 has no data points? Wait, the graph's y - axis has 1970,1980,1990,2000,2010,2020. So:

• For 1970: move the top - left (x = 25), top - middle (x = 30), top - right (x = 35) dots to the 1970 row, at x = 25, 30, 35 respectively.
• For 1980: move the middle - left (x = 25), middle - middle (x = 30), middle - right (x = 35) dots to the 1980 row, at x = 25, 30, 35 respectively.
• For 1990: move the bottom - left (x = 25), bottom - middle (x = 30), bottom - right (x = 35) dots to the 1990 row, at x = 25, 30, 35 respectively.
• For 2000: move the left - most dot of the fourth row (x = 25) and the middle dot of the fourth row (x = 30) to the 2000 row, at x = 25, 30 respectively.
• For 2010: move the left - most dot of the fifth row (x = 25) and the middle dot of the fifth row (x = 30) to the 2010 row, at x = 25, 30 respectively.

Step2: Connect the Points

After placing all the data points, use the line tool to connect the points with the same x - value (or same emission level) over time? Wait, no, connect the points for each emission level over time. For example, connect the points with x = 25 (1970,1980,1990,2000,2010), x = 30 (1970,1980,1990,2000,2010), and x = 35 (1970,1980,1990). Then change the line color to blue.

(Note: Since this is a graph - building problem, the key steps are placing the data points correctly on the graph (aligning x - emission and y - year) and then connecting them with lines.)

Answer:

(The final answer is the completed line graph with blue lines connecting the data points placed at the correct (year, emission) coordinates as described above.)