В 1863-1864 годах в России была проведена реформа образования. Назовите не менее трех принципов, на которых основывалось

Nowadays nature is in danger. Very often people do not even know, how to help the nature. We should protect it, because animals and plants can lose their homes, the water become dirty. Environment is very important now. We must stop cutting trees. We must stop making fires in the forests. We should make the water cleaner,because there is little fresh drinkable water in the world. We should think of safe fuel.Factories should give less smoke. The seas, seasides and land should be cleaner.