Jawapan

2016-08-27T11:37:40+08:00
The condition of the ozone layer in 100 years ago is far more better than today because of humans.
2016-08-27T11:41:49+08:00
The current ozone layer is worse than the last 100 years ago where it is currently getting thinner year over year. This is due to greenhouse gases released in our ecosystem. Currently there are a lot of holes in our ozon layer at the poles because of climate change, compared to 100 years ago where there are less pollution.