Question: Aswitch is used to start the flow of current in an electrical circuit, and some systems have an additional connection for a second doorbell switch. Given these facts, what is used to start the flow of current in an electrical circuit among the following options: - energy - a doorbell - heat energy - kinetic energy - simple - Firecrackers - cycles - deltas
Answer: a doorbell

Question: Creating paper requires cutting down trees, and pulped wood is used to make paper. Given these facts, what requires cutting down trees among the following options: - swamp vegetation - to move people - vehicles - Greenhouse gases - pulped wood - burning - deforestation - fossil fuels
Answer: pulped wood

Question: The surface of a beach is formed by mechanical weathering, and beaches Anymore Sand is one of the most common materials on the earth's surface. Given these facts, what process creates sand among the following options: - Water expanding - beach - evaporation - friction - silicon dioxide - weathering - dunes - rainfall
Answer:
weathering