Which of the following best describes a way in which human activities affect the level of greenhouse gases in the atmosphere?

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Which prefix mean under less or below

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?