20 POINTS Why is a wetland important to the environment? A.) They act as a sponge that holds rainwater, snow melt, and flood waters, which helps prevent floods
B.)Wetlands also filter water, cleaning the groundwater
C.) Fish and shellfish, various birds and mammals require coastal wetlands to survive. For instance, many animals raise their young in coastal marshes.
D.) All of the above

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.

Which of the following is one of the innovations that neolithic farmers become more productive? a) plow b) windmill c) tractor d) reaper

One of the great societal changes brought about by industrialization in europe was a. slavery. b. urbanization. c. ruralization. d. democracy.