1) Water exists in _______ forms a) 2 b) 3 c) 4 d) 5 2) About ___ of the earth's surface is covered with water. a) 85% b) 71% c) 30% d) 75% 3) Sea water is also called fresh water. a) True b) False c) Not sure d) None of the above 4) Which is the man made source of water? a) Dams b) Rivers c) Lakes d) Ponds 5) Identify the picture a) evaporation b) freezing c) boiling d) none of the above

WATER

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？