Answer:
Lack of water and being unable to exercise
Explanation:
yea
Answer:B
Explanation:Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
Answer:
True
Explanation:
If a fitness plan is started to quickly it can lead to exhaustion, fatigue, and overexertion. This will cause a lack of motivation and may cause the person to quit the program altogether. Starting slowly helps the user of the plan to pace themselves and improve over time.
Answer:
Air pollution
Explanation:
Air pollution and dust storms are the main environmental conditions that lead to the damage of the alveolar sacs. Air pollution results in the shortness of breath in an individual, which leads to the weakening and rupturing of the inner walls of the alveolar sacs with time. Diffusion of oxygen becomes difficult as a result of large air spaces (decrease in surface area of the lungs) that are created in the alvoelar sacs by the effect of air pollution. This results in the drop in the quantity of oxygen supplied to the blood stream.
