niektóre zdania są u Ciebie porawne, a to co wpisuje to moje propozycje :))
the mini wind-turbine should BE AWARDED THE FIRT PRIZE FOR THE MOST ENVIRONMENTALLY FRIENDLY IDEA.
Nowadays natural
>resources are EXTENSIVELY EXPLOITED WHICH MAY LEAD TO THEIR TOTAL EXPLOITATION IN THE NEAREST FUTURE
website should be awarded second prize (BEZ 'BY')
Thanks to it small companies can fast and easy communicate with their
>suppliers and customers. - This idea makes it possible/easier for the companies to communicate more effectively (or: easier and much faster)
It enables to do quite safe business via the Internet. - it renders the business via Internet much safer