Question

9 which of the following has taken steps toward a positive effect due to efforts made on a global scale to correct human activity?
deforestation
ozone depletion
release of greenhouse gases
pollution

Explanation:

Ozone depletion has seen positive changes due to global - scale efforts like the Montreal Protocol which restricted the production of ozone - depleting substances. Deforestation, greenhouse gas release, and pollution still face significant challenges despite some efforts.

Answer:

Ozone depletion