How did giuseppe garibaldi contribute to italian unification?

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?

What’s the reason for not digging up aztec ruins in modern mexico city

What recommendations would you give to your local community to to decrease the local effects of human impact on the environment? list 2 recommendations and how they will positively impact your community. 3. what recommendations would you give to the global governments to decrease the global effects of human impact on the environment? list 2 recommendations and how they will positively impact our planet.