Guatemala and Chile are democracies; but Cuba isn't - so that's not something they have in common.
However, something they have in common is ongoing political change/ political crisis - in Chile for example is dealing with a huge corruption scandal and Cuba is introducing democratic reforms
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The book the jungle book by Upton Sinclair exposed the horrible conditions in which industry showing of unfair work practices experienced by poor immigration laborers. Most of the work in the Industry was being carried out by people with few political or legal right to protest their poor working conditions and harsh treatment.
3D printing uses computer-aided design (CAD) to create three-dimensional objects through a layering method. Sometimes referred to as additive manufacturing, 3D printing involves layering materials, like plastics, composites or bio-materials to create objects that range in shape, size, rigidity and color.
True, because they are some of the most high ranks in the church