Why is air pressure greater at lower altitudes than higher altitudes?

DUE TODAY 11:59

In this discussion, you will consider how historical lenses can affect the study of a historical topic. Select one of the secondary source articles from the Research Kit attach below for your chosen topic. After reading that article, write a discussion post about which of the following lenses you believe the article is using: social, political, economic, or other. Use at least two quotes from your source to justify your choice of lens. Your post title should also indicate which topic you have selected. Next week, you will be prompted to respond to two of your peers’ initial posts.

DISCUSSION 2 DUE TODAY 11:59

List several suggestions for child care workers for early infancy and late infancy.

DISCUSSION 3DUE TODAY 11:59

Why is air pressure greater at lower altitudes than higher altitudes?