No trees give out oxygen. Ozone is an allotrope of oxygen.
Yes, and ozone damages them internally. It essentially destroys their "lungs".
The ozone layer gives us the protection from radiation
If there was no ozone, no life would be there. There would be mass extinction.
Scientists collect the ozone concentration. This gives them an idea to check the thinning.
Tree houses rising into the atmosphere and damaging the ozone layer.
Ozone is very beneficial to human beings. If no ozone was there, humans would not have existed.
Humans are affected by the ozone layer. If there was no ozone, there would be no human life.
There is good ozone and then there is bad ozone. Good ozone is present in the earth's atmosphere.
There would be less free oxygen, so there would be less ozone.
Ozone is continually made by the Sun. Ozone made at Earth's surface does not survive to reach the ozone layer.
It would probably create a localized ozone hole.
If there was no ozone, there would be no life. UV is fatal for life on earth.