Discuss two problems that led to rome's decline?

The graph shows a student’s data from an investigation about plant growth in five plants of the same type.

An object weighs 40n in air , weighs 20n when submerged jn water and 30n submerged in a liquid of unknown density .what is the density of the liquid?

This form of government has only a single political party. question 2 options: communist democratic autocratic parliamentary