Green Forest High School is a comprehensive four-year public secondary school in Green Forest, Arkansas , United States . It is one of ten public high schools in Carroll County and the sole high school administered by the Green Forest School District .
Air is mainly composed of nitrogen, oxygen, and argon, which together constitute the major gases of the atmosphere. Water vapor accounts for roughly 0.25% of the atmosphere by mass.he atmosphere of Earth is the layer of gases surrounding the planet Earth that is retained by Earth's gravity.
The most abundant gases in the atmosphere are nitrogen at 78 percent and oxygen at 21 percent, while the trace gases methane, neon and helium make up around one-tenth of 1 percent of the atmosphere. Oxygen, nitrogen and argon are classified as permanent gases because their percentages always remain the same.