Which of the following statements about Ivan Pavlov is NOT true?

a. He was a physiologist originally studying the digestive systems of dogs.
b. He conducted research that laid the groundwork for classical conditioning.
c. He found that dogs would salivate in response to a stimulus that had previously been paired with food.
d. He partnered with Albert Bandura on studies of social learning.

Click on  the link  to view information gathered by the organization keep america beautiful. read "the costs of american littering" to find three negative effects of litter in local communities.  based on your research, what are the negative effects of litter in local communities? check all that apply. litter cleanup is very expensive. litter has decreased since 1969.litter is a constant community problem. litter causes property in the community to be less valuable. litter contaminates water and has other environmental consequences.