By Clifford Knight,2014-05-27 04:12
Our energy needs
For people to live on our planet, we need energy. We need energy for heat,
for light, and for transportation. When it is cold, we need energy for heat.
When it is dark, we need energy for light. When we want to travel, we need
energy for transportation. For example, to run our cars, we burn gasoline,
which comes from oil. We also ne..