Class 4 Science Chapter 7 Test 2 Welcome to your Class 4 Science Chapter 7 Test 2 1. Dinosaurs were present on earth ______ of years ago. Hundreds Thousands Millions None of these 2. _______is/are called non-renewable resources. Coal Petrol, diesel Natural gas All of these 3. Dinosaurs are now_______. In Amazon Extinct Live in high mountains None of these 4. The lavish use of natural resources is causing irreparable ______ to our environment. Benefit Damage Good All of them 5. ______ are simple solid chemical substances which are present in the earth. Oil Petrol Gas Minerals 6. Those unlimited resources which can be replaced after use are called _____resources. Renewable Non-renewable Sunlight Water 7. Glass is made from: Sugar Sand Plastic Rubber 8. An example of non-renewable sources is: Oil Soil Air Solar energy 9. Air, water, soil, forest and solar energy are ________resources. Renewable Non-renewable Sunlight Water 10. The imprints or remains of many organisms that do not exist in this world now are known as______. Fuels Food Fossils None of these 11. Recycling saves natural resources by making things________. Reusable Throwing Polluted None of these 12. Those resources which cannot be replaced by new ones easily are called ______ resources Renewable Non-renewable Sunlight Water 13. Remains of dead animals and plants found in the earth are called Soil Minerals Stones Fossils 14. About what percentage of the Earth’s surface is land? 1 percent 21 percent 29 percent 30 percent 15. Due to excessive use of natural resources, renewable resources will also run out or will become________. Useable Unusable Good condition Grow more 16. To make things reusable is called: Recycling Conservation of resources Care Cycling 17. Coal, petrol, diesel and natural gas are ______ resources. Renewable Non-renewable Sunlight Water 18. The skeletons of many ancient animals are still preserved in: Soil and rock Salt reservoirs High mountains None of these 19. Coal, petrol, diesel and natural gas take ______ of years to form Hundreds Thousands Millions None of these 20. Some renewable resources are used as ______ substitutes. Food Wind Fuel All of these Time is Up! Time's up
