I think it's c
Because the last 2 aren't true
Through the analysis of the rotation curve of how the velocity of the planets from the sun differs when it rotates, people can measure the distribution mass.
Since the rotation curve decreases when the distance from the Sun is increasing, people can determine that Dark Matter is scattered along those distances.
Planting trees in africa could help reduce severity of climate change.
The first one is the right one. T<span>he ability for humans to survive using earth's natural resources in a way that maintains their suitability</span>
