20. Water comes from open and closed sources. 21. Seawater is the habitat of aquatic plants and animals. 22. Water plays a vital role in the survival of all living things. 33. Groundwater comes from water that seeps into the ground. 24. Freshwater in rivers, lakes, and springs is not for recreation. 25. Rivers, lakes, creeks, and ponds are example of freshwater. 26. Seawater contains plenty of salt that is why it is called "hard" water. 27. Groundwater is not an important component in many industrial proc 28. Freshwater is used for drinking, cleaning, washing, bathing, and oth uses. 29. Groundwater is the cleanest water and contains plenty of dissolved the human body needs. 30. Soil covers most of the land part of the Earth.
