Read the passage and mark A, B, C, or D to indicate the correct answer to each of the blanks

GLOBAL WARMING
Few people now question 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 in the world's ___(2)___ and are convinced that, more than ever before, the Earth is ___(3)___ risk from the forces of the wind, rain and sun. According to them, global warming is making extreme weather events, such as hurricanes and droughts, even more ___(4)___ and causing sea levels all around the world to rise.
___(5)___ groups are putting pressure on governments to take action to reduce the amount of carbon dioxide which is given ___(6)___ by factories and power plants, thus attacking the problem at its source. They are in favor of more money being spent on research into solar, wind and wave energy devices, ___(7)___ could then replace existing power station.
Some scientists, ___(8)___, believe that even if we stopped ___(9)___ carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the ___(10)___. Global warming, it seems, is to stay.