Summarize why ozone was important in
enabling organisms to live on land.

Explanation:

the ozone layer protects the planet from much of the harmful UV rays from the sun. This allows organisms to thrive without getting hit by deadly UV rays. Ozone kinda acts like sunscreen.

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.