RENEWABLE & NONRENEWABLE ENERGY SOURCES

Do you know which energy source is mostly used nowadays? Do you know how much of the energy we consume comes from renewable sources? Do you know when we started using petrol as a fuel? What was used before?
In DBH3 we are dealing with the topic of energy at this point, and here you have a very nice didactic material to work on the topic and know more about it. Have a try!  (click here) Once you have seen the films on that page, do the online exercises it proposes. You'll learn a lot!