BRAINLIEST IF CORRECT 60 POINTS Which gas was only present in trace amounts in the atmosphere of early Earth?
A. oxygen
B. ammonia gas
C. carbon dioxide
D. sulfur gases

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

Acell goes through cellular respiration and produces atp which it then uses to move a molecule across the cell membrane. how does the energy in the original glucose molecule change during this process? (2 points)