A nonliving material that comes from Earth is a ____ . Materials supplied by nature are called ____ . Creating without wasting energy is called being ____ . Resources that are limited in supply can be called ____ . ____ is to change form. ____ is energy created by water. Materials in the air, water, or land that can cause harm are called ____ . ____ is what happens because of an action.

Eco-Friendly

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?