5 questions with ((explain the significance of the questions ))

hello this is a 5 questions with ((explain the significance of the questions )) but please try to make the answer short

1-What international organization established the Bruntland Commission, and what is their oft-quoted definition of sustainability?

2-What was the Millennium Ecosystem Assessment and, in a few sentences, what did they find?

3- The year 2005 is the midpoint of a decade that spans three unique, important transitions in the history of humankind. List two.

4- An industrial ecologist stated, “The term ‘eco-friendly’ should not ever be used. Anything manufactured is only relatively so.” Explain this with the LCA concept.

?5- What is the $ value of the planet’s ecosystem services? ($ number only please, no discussion needed).