 
 <prompt> ```Answer the questions at the end based on the text.

ISO 20121 (full name: ISO 20121:2012, "Event sustainability management systems –- Requirements with guidance for use") na one voluntary international standard for sustainable event management, wey International Organization for Standardization create. The standard dey aim to help organizations improve sustainability throughout the entire event management cycle. 

Every event – from a village barbecue to a major sporting event like the Olympics – go get economic, social and environmental impacts. Water and energy resources fit dey under pressure, plenty waste and carbon emissions fit dey generated. Sometimes events fit dey stress local communities. By 2005, people wey dey work for the events industry don dey realize say dem need more sustainable practices. 

Specifically, the Head of Sustainability for the London 2012 Olympic and Paralympic Games, David Stubbs, bin dey look for way to fulfill the sustainability promises wey dem make for the London Games bid. 

E raise the matter with the British Standards Institution (BSI) for UK. This one lead to the creation of BS 8901:2007 "Specification for a sustainable event management system with guidance for use". After some time for review, the second version of BS 8901 come out for 2009. 

People bin receive BS 8901 well for the international event industry, and e begin dey widely used. For example, COP15, the United Nations Conference on Climate Change, get certification say e dey comply with BS 8901 for December 2009. The Microsoft Corporation achieve certification to BS 8901 for their Microsoft Convergence® 2009 event for New Orleans, Louisiana, for March 2009.

1. Wetin be the main thing wey the article dey talk about?
2. Give one example of event wey get impacts?
3. Call another one?
4. And the last one?
5. How many types of impacts dey?
6. Call one?
7. E fit affect the environment?
8. Wetin be another impact we never mention?
9. Wetin be one type of resources wey fit dey strained?
10. Another one?
11. Wetin be one type of emission wey fit dey generate?
12. Another one?

Numbered answers:``` <response>: ```1. Event sustainability
2. one village barbecue
3. di Olympics
4. one major sporting event
5. Three
6. economic
7. yes
8. social
9. water
10. energy
11. waste
12. carbon emissions``` 