Answer:
Two common types of graphs are bar graphs and line graphs. Bar graphs use vertical or horizontal rectangles (bars) to represent a specified quantity. Line graphs use points to identify values, and then connect each point with a line that shows the fluctuations in the data.
The reasons include- economic instability and corruption in government
Explanation:
The nascent economy of 1980 China affected the economic system of the country. The political legitimacy was also one of the reasons of the democratic movement of 1989. It had the background of corruption, inflation, lack of graduates in handling the economy and restricted political participation.
People fought for freedom of press, speech and democracy. However, the movement was not well organised but had greater participation. It was demolished by the government through the declaration of martial law
The 4 clues are 1) color change 2) the formation of gas bubbles 3) formation of a precipitate 4) temperature change. I hope this helps
