Choose the word among A, B, C or U> that best fits the blank space in the following passage.

GLOBAL WARMING

Few people now realize the reality of global warming and its effects on the world’s climate. Many scientists (1) _________ the blame for recent natural disasters on the increase (2) ______ the world’s temperatures and are convinced that, more than ever before, the Earth is at (3) ___________ from the forces of the wind, rain and sun. According to them, global warming is making extreme weather events, (4) ___________ as hurricanes and droughts, even more (5) ________ and causing sea levels all around the world to rise.

(1) ___________

• A. 
  give
• B. 
  put
• C. 
  takes
• D. 
  has