Start Cat. 1 Cat. 2 Cat. 3 Cat 4. Cat. 5 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 1 What is ….b Which is a natural resource? a. Steel b. Water c. Plastic d. electricity Click here for answer back 2 What is ….d Which of these is a renewable resource that supports life on Earth? a. Oil b. Coal c. Natural gas d. Solar energy Click here for answer back 3 What is ….c What is humus? a. Organisms that live in soil b. Bits of soil formed from erosion c. Decayed plant and animal matter in soil d. Small bits of granite and other rock in soil Click here for answer back 4 What is ….d Which of these is true of soil? a. Soil is nonrenewable. b. Soil does not easily erode. c. The topsoil layer is renewed every year. d. Soil covers most of Earth’s land surface Click here for answer back 1 What is ….d What is subsoil? a. Humus b. Mostly solid rock c. The top layer of soil d. A layer of soil made mostly of small rocks Click here for answer back 2 What is ….b Why is sandy soil not the best soil for growing plants? a. Sandy soil blows away easily. b. Water runs through sandy soil. c. Plant roots cannot grow in sand. d. Water stays and rots the roots of plants. Click here for answer back 3 What is ….a Why is solar energy renewable? a. Solar energy won’t run out. b. Solar energy is powered from burning coal. c. Solar energy can be changed into electric energy. d. Solar energy comes from chemical energy stored in plants. Click here for answer back 4 What is ….b How do solar cells support the need for energy? a. They convert electricity to solar power. b. They change solar energy to electricity. c. They convert natural gas to solar energy. d. They change wind and sunlight to solar energy. Click here for answer back 1 What is ….d Why is petroleum a nonrenewable resource? a. It is a mineral. b. It only exists far underground. c. It comes from sedimentary rock. d. It is used faster than it can be replaced. Click here for answer back 2 What is ….d Which is true of coal? a. It is a renewable resource. b. It is the basis for solar energy. c. As coal is used, it is replaced by nature. d. The energy in coal can be traced to the Sun. Click here for answer back 3 What is ….d Which is a result of using nonrenewable resources? a. Burning fossil fuels destroys oxygen. b. Water particles disappear from the air. c. Harmful acid rain is released from burning oil. d. Released carbon dioxide may lead to global warming. Click here for answer back 4 What is ….d What is conservation of resources? a. Not using fuels b. Not using fossil fuels c. Using only recycled fossil fuels d. Efficiently using only what you need Click here for answer back 1 What is ….d Which is true of recycling? a. Glass cannot be recycled. b. Products from wood can be recycled only once. c. Recycled paper is first burned and then reshaped. d. Paper is easier to recycle than some other materials. Click here for answer back 2 What is ….c How would you describe natural resources? a. Just the living things that nature provides b. Things that humans supply c. Supplies that nature provides, both living and nonliving d. Just raw materials that plants use but humans do not Click here for answer back 3 What is ….d What is true about renewable resources? a. Can’t be replaced b. Supplied by humans c. Only come from living things d. Can be replaced Click here for answer back 4 What is ….c What is the upper layer of soil that contains decaying matter and bits of weathered rock? a. Subsoil b. Bedrock c. topsoil d. humus Click here for answer back 1 What is ….c From smallest to largest particles, what is the order of types of soil? a. Silt, sand, clay b. Sand, clay, silt c. Clay, silt, sand d. Silt, clay, sand Click here for answer back 2 What is ….b Why are ores and natural gas nonrenewable resources? a. Both can easily be replaced. b. Both are being used up faster than they are being replaced. c. Both exist in unlimited amounts. d. Both lose their energy once out of Earth. Click here for answer back 3 What is ….a Which product that can be recycled comes from wood? a. paper b. Cans c. Plastics d. glass Click here for answer back 4 What is ….c When do we use the Sun’s energy without even knowing it? a. When a farmer uses sunlight to produce food b. When we use a solar cooker to cook food c. When sunlight streams through a window and warms a room d. When we use solar cells to heat a house Click here for answer back