What is the difference between the two below structures? Would have been verb+ing and would be (past verb) please take examples

What is means of "row" in this sentence? We couldn't row because of the dense weeds in the lake.

Earth Hour "Please correct " Earth hour is an annual worldwide event for raise awareness about the need to take action on climate change. The event device by the World Wide Found for Nature (WWF) at March annually. In this program turn off non-essential light for one hour. The non-typical action for one hour maybe people to think about global warming Earth. but quick and decisive action is essential if we are going to save the Earth. clean cities without smoke and pollution are scarce in the world nowadays. cars and factories mach talent to produce pollution to warming Earth. Engineers in national environment organization must devise a plan to abandon the use of fossil fuels and must persuade factories to observe national environment. Hoping to Earth without contamination.

Please, correct this sentence? Easily visible Earth to warming when melting ice in the arctic.

please, correct this sentence? The baker for made bread dough to blend wheat and water.

please, correct this sentence? Quick and decisive action for save the Earth is essential.

please, correct this sentence? national environmental organization must be persuade factories to observe national environmental standards.

please, correct this sentence? Earth hour is a worldwide event annual for one hour to raise awareness about the need to take action on climate change.

please, correct this sentences? the city without smoke and pollution are scarce in world now.