Class 5 Science Chapter 8 Test 2 Welcome to your Class 5 Science Chapter 8 Test 2 1. Below top layer, a layer of subsoil which contains ________. Mud Clay Rocks Gravel 2. The fresh water available to mankind is about ________ of the total water on the Earth’s surface. 1% 70% 2% 97% 3. The ________ of the Earth surface is covered by water. 1% 70% 2% 97% 4. The water on the Earth is found in ________ states. Two Three Four One 5. On earth, the water is found in: Solid Liquid Gas All of these 6. About ________ of the water in the oceans is salty. 1% 70% 2% 97% 7. Glaciers, rain, lakes, springs and underground water are the sources of ________water. Salty Polluted Dirty Fresh 8. The lowest layer consists of ________. Mud Clay Rocks Gravel 9. The breakdown of rocks by sunshine, severe rains and fast wind blowing is called ________. Rain Cloud Weathering Snow 10. ________ is the organic matter produced by the decay of vegetables, plants and dead animals. Salt Plants Humus None of these 11. The top layer of soil contains sufficient amount of ________. Salt Plants Humus None of these 12. Humans retain moisture in the soil and make the soil ________. Rough Salty Fertile None of these 13. About ________ of the water on Earth’s surface is frozen. 1% 70% 2% 97% 14. Major part of the Earth is made up of ________. Salt Mountains Rocks None of these Time is Up! Time's up
