what would happen
atmosphere one
of pure oxygen?
what is special about nitrogen, and what is its main function in the atmosphere?
name at least 4 other gases in the atmosphere besides oxygen and witrogen:
if the atmosphere is like a greenhouse, what parts of it function as the glass"

i'm not sure

explanation:

i'll try whatever you got

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

d) a person who learns about the world by observing it.

explanation:

scientist are people who discover why and how things are done and made in the world.