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The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
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- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
Answer:
All answers are correct. The Global Reporting Initiative is a framework that sets out the principles and indicators for organizations to measure and report their economic, environmental, and social performance; It’s an initiative to lead multinational enterprises to report globally; and it’s a framework to help national firms to report globally to gain international investors.
The Global Reporting Initiative is a global organization, which aims to set reporting standards for companies, regarding sustainable development.
The innovative character of GRI is based on three principles. First, the standards are developed collaboratively, through the cooperation of a diverse range of actors, who normally would not have considered themselves members of the same network. Second, GRI is designed as a self-regenerating system, a design that is designed to ensure adaptability. Finally, the system is based on an organizational structure that acts as guarantor of the standards, that are designed as a public good.
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