Source D says, “The science of today is the technology of tomorrow.” -Edward Teller. Solar energy is radiant energy emitted from the sun. Solar panel are the most common use of solar energy used today. Solar energy will be the answers to the Earth’s energy needs in the future. Source A explains how solar panels work. For solar panels to works, photovoltaic cells need to establish an electric field. An electric field occurs when opposite charges are separated. Manufacturers mix silicon with other materials giving each cell a positive or negative charge. They seed phosphorous into the top layer of silicon. This adds extra electrons with a negative charge to that layer. Boron gets added to the bottom layer and they have a positive charge. For
