Please help me pick the correct adverbs

While often criticized for their ecological impact, cities are sources of ideas, creativity, and technology. ____________ (For instance/Essentially) humans are social animals and require a place to exchange knowledge and socially interact.
____________ (In other words/Significantly) economic opportunity has been a driver behind urban growth - ___________ (in other words/essentially) there is more chance of employment in cities despite widespread economic problems.
______________ (To conclude/Similarly) opportunities for education in cities are greater than elsewhere. _____________ (For instance/In other words) in Senegal, the urban literacy rate for males is 80.6%, compared to 45.2% in rural areas [UNESCO, 2011]. ____________ (Significantly/To conclude) by 2030 approximately two thirds of the global populations will be urban. Although there are definite disadvantage, we must also look at the benefits of city living.

Thank you very much in advance