PASSAGE 9 (Questions 6-10)

Directions: In the below given passage, there are blanks each of which has been numbered. Five words are suggested, one of which fits the blank appropriately. Find out the appropriate word in each case.

(Passage continued from previous page...)

As the environment __(6)__ those species which don't adapt __(7)__ to exist. But the sheer __(8)__ of manmade climate change today is __(9)__ Bad things are happening and by one __(10)__ global warming could threaten upto one-third of the world's species if left unchecked. In fact, a lot of the species which will be able to survive, are the ones we consider pests like insects and weeds. 

[IDBI(PO),INDIAN BANK(PO), 2011/2009]

Select the appropriate word for blank 6.