All airplanes have a red light on their left wing and a green light on their right wing, to indicate their direction of travel to other planes #knowledge 176 views 𝒁𝒂𝒌𝒂𝒓𝒊𝒚𝒐𝑺𝒂𝒅𝒓𝒊𝒅𝒅𝒊𝒏𝒐𝒗, 19:06
