Listen and complete each sentence with NO MORE THAN TWO WORDS

VII. Listen and complete each sentence with NO MORE THAN TWO WORDS.
Question 31.
Energy is classified into   
   groups.
Question 32.
The energy from   
   is called renewable energy.
Question 33.
Using renewable energy can reduce your   
   costs.
Question 34.
Non-renewable energy is limited and will   
   in the future.
Question 35.
Fossil fuels when burnt release   
   in the air and cause serious environmental changes.