Which of the following goals is included in the initiatives created by the united nations environment programme? a. the reduction of carbon emissions by 80% by 2050 b. the reduction of the population growth rate by 10% by 2050 c. trade embargoes against nations that fail to conserve resources d. changes that will limit global warming to 1° f by 2050

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.

5×^2+20-15 or -(5x^2-20+15)

Ibelieve its c.  that to me seems like the closest answer