Read the passage below and answer the following questions
There has been a lot of talk about finding alternative sources of energy. It seems to be the hot button topic for this generation, and why not? Gas prices have scaled to all time highs all over the world. While recent months have seen a considerable reduction from the record highs, the cost of fuel is still sitting at a considerable level and makes a tremendous difference in a person's monthly budget. For this reason, it is essential that alternative sources of energy be explored. And people should also not forget one of the oldest and best forms of transportation for daily travel: the bicycle.
Autos pollute the air, bicycles do not. Automobiles give off pollution. There is no getting around it. Even the cleanest auto technologies emit something. Bikes present only the simple physics of a rider and two wheels. When you choose to make a lot of your routine travels with a bicycle, you give the environment a chance to rest and restore from the damage that freeway traffic does to it. The more people on two wheels, the better!