The ozone issue has changed with time. The use of CFC first depleted the ozone but now it is stable.
its changed over time by tectonic plates shifting.
No the ozone hole is not constant over the time
Yes, the ozone has shifted over time. It changes with weather each season.
The ozone hole was discovered over Antarctica.
Atmosphere has changed much with the advent of time. The concentration of ozone in atmosphere has gone down.
how the anemometer changed over time
how the anemometer changed over time
The laws of physics have not changed over time. Our understanding of them has changed over time.
how has coal mining changed over time
People changed over time by growing up.
no they have changed over time. no they have changed over time.
The ozone hole is not constant. Various man made chemicals vary the size of it.