Justin noticed several cracks in the sidewalk. Weeds were growing through them, causing the cracks to expand. What process is this?

Which of the following was not an effect of hurricane katrina? a. more than 1,800 people were killed. b. as of 2005, it was the most destructive natural disaster in us history. c. the most severe damage was a result of the storm surge. d. the damage was limited to louisiana and the new orleans area.

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

Give an example to prove that your society is developed more than it was before 10 years ?