What is protected cropping, and why is it important to horticulture?

During the day, the sun's rays penetrate the Earth's air mantle. Some of them come to the surface - they heat the soil, stones and rocks, the water of the seas and oceans. And they supply this heat to the surrounding air, and the air shell surrounding our planet - the atmosphere - is heating up. The winds on our planet cannot give way due to the sun.

Explanation:

answerpeople organize large projects such as levee-building;