quinta-feira, 14 de junho de 2007

Alternatives Fuels

Alternative fuels are derrived from resources other than petroleum. Some are produced domestically, reducing our dependence on imported oil, and some are derived from renewable sources. Often, they produce less pollution than gasoline or diesel.To promote alternative fuels, the Federal government offers tax incentives to consumers purchasing qualifying alternative fuel vehicles.

Ethanol is produced domestically from corn and other crops and produces less greenhouse gas emissions than conventional fuels.

Biodiesel is derived from vegetable oils and animal fats. It usually produces less air pollutants than petroleum-based diesel.

Natural gas is a fossil fuel that generates less air pollutants and greenhouse gases.

Propane, also called liquefied petroleum gas (LPG), is a domestically abundant fossil fuel that generates less harmful air pollutants and greenhouse gases.

Hydrogen can be produced domestically from fossil fuels (such as coal), nuclear power, or renewable resources, such as hydropower. Fuel cell vehicles powered by pure hydrogen emit no harmful air pollutants.

Perguntas:

1- O que são combustíveis alternativos?
2- Onde pode ser produzido o hidrogênio?
3- Onde o ethanol é produzido?
4- De que tipos de materiais o biodiesel é derivado?
5- Quais são as principais formas de combustiveis alternaltivos?

Vocabulário:


crops: colheita, produção;
less: uma quantidade menor; o inferior;menor;menos;
harmful: que causa danos;
cell: cela;
purchasing: compra; aquisição;
vehicles: veículo; aparelho;



Nome e números dos componentes do grupo:
Felipe Alves 07
Juliana 20
Leandro 25
Lívia 27
Tatiane 41