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1£®Which of the following statements is True according to the passage?

A£®The past development set alarm bells ringing.

B£®The sustainable development is more suitable in the future.

C£®The sustainable development is short­term planning.

2£®Which one is not non­renewable sources of energy?

A£®Solar energy.¡¡ B£®Coal.¡¡¡¡¡¡C£®Oil.

3£®What is the oldest and most common renewable energy sources?

A£®Solar energy.  B£®Wind power.  C£®Hydroelectricity.

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