11.   Just after the impact there was a flash as the rocket exploded.

12.   Since impacts are the product of population numbers and consumption, all nations should grasp the nettle of eventual zero population growth.

13.   The impact was so severe it left a small crater.

14.   The impact was so severe it left a small, black crater in the snow-white cornfield in rural Ida.

15.   The impact was so sudden and so fierce, it knocked me out cold.

16.   The long-term impact would no doubt be greater.

17.   The most dramatic impact will be on First Interstate employees.

18.   The plan had previously blocked because the inspector concluded that the visual impact would be too great.

19.   The visual impact is deeply inspiring.

20.   Therefore the impact is very violent.