According to your graph, pig iron production between 1790 and 1830 .
according to your graph, the number of tons that pig iron production increased by between 1790 and 1830 was .
the general trend in pig iron production between 1720 and 1860 was that it .

the image shown is not a reliable source. it is not a photograph taken of the event, and it is not a painting created by someone who witnessed the event. the image can be considered yellow journalism because it is sensational and exaggerated. the explosion did not likely cause bodies to fly in the air or create a large fireball, as shown here. the image was created to make the american public angry about the explosion, not to show what actually happened.

the painting is not reliable.

the painting is exaggerated.

the painting is inaccurate.

the painting was created to make the public angry, not to show what really happened.