The primary cause of vulnerability to health problems is poverty. If a person belongs to a poor family they chance of having less education is high. If they are not well educated the lesser the knowledge they have about sicknesses and other health problems. They are very prone to develop adverse health outcomes because they don't know how to prevent sickness and protect their selves.
Answer:
A
Explanation: sorry i don't know an explanation, its just a name for the layers of gas surrounding the earth
Air enters into the body through nose and proceeds to pharynx or windpipe afterwards it proceeds down and reaches to larynx the voice box and continue to proceed to trachea which is surrounded by rings so that by air pressure it cannot be collapse from there a divides into two side left and right bronchus then it conducted towards bronchioles which is the pathway to alveoli at last it reaches to its Final Destination (not that movie....hahah) which is alveoli where the exchange of gases takes place
The answer is b I’m not sure I think
Answer:
B
Explanation:
This is the only thing missing in the food chain