Answer:
Explanation:
solid : a hard stern shape that cannot be drunk like a watery substance
Liquid : a watery substance
gas : a vapor like substance that travels through the air
CO2 traps heat in the atmosphere of the earth which leads to global warming because of the green house effect
Most likely to be A which is probably an artery which carries blood away from the heart Nd tens to carry oxygen rich blood
the leg doesnt contain aveoli this is found in the lungs so its not B
since its oxygen rich little carbon dioxide will be present in this structure so its not C
this part cant be part of the respiratory system as the respiratory system includes lungs, mouth and etc but not the legs so it cant be D
hope that helps
I have no idea what that means but the answer is b
