2643772 Brace yourselves for impact. CK 325303 The storm had a bad impact on the crops. CM 265338 The impact of science on society is great. CK 34931 The car bumper absorbed some of the impact. CM 954309 Stress can have an enormous negative impact on your health. CK 954123 Lack of sleep can have an enormous negative impact on a student's grades. CK 954271 Skipping classes can have an enormous negative impact on your final grade. CK 1415525 The Belo Monte dam in Brazil is a controversial project because of its impact on the environment and native people. Spamster