Pick three wind turbine designs so i can make a powerpoint off them, any three

a hybrid wind-hyrdo turbine

vortex bladless wind turbine

helium filled floating wind turbine

Explanation:

https://www.google.com/amp/s/www.engadget.com/amp/2016/11/05/six-innovative-wind-turbine-designs/

coal is not sustainable because it will one day run out.

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.