Answer: Tidaling
Explanation:
It is rise and fall of water in water-seal chamber, used to determine the degree of re expansion of the lungs. It reduction shows the lungs reexpands.
However, with respiratory efforts it is normal.
creates the sun's energy from nuclear reactions
sorry if wrong.
Answer:
Our atmosphere (air) is comprised of 78% of nitrogen. However, this nitrogen is in its elementary state (N₂) and therefore is quite inactive, so the plants can not use it directly. Changing the elementary nitrogen into more reactive forms (NH₃, NO₂, HNO₃) is occurring through the process called nitrogen fixation. It is happening via two processes.
First one is physical nitrogen fixation. When some type of atmospheric physical energy (lightning bolt, for example) reacts with N₂, it splits it in two very reactive N atoms, enabling them to react with oxygen in order to form NO₂.
Second process is biological nitrogen fixation. It's done by bacteria, special bacteria living in the soil, able to use elementary nitrogen for its metabolical pathways resulting in production of ammonia, which can be used by plants. It's noteworthy that bacteria are responsible for about 90% of all nitrogen fixation.
Tobacco use and exposure to secondhand smoke. Poor nutrition, including diets low in fruits and vegetables and high in sodium and saturated fats. Lack of physical activity.
Some causes of chronic diseases include: tobacco use and exposure to secondhand smoke- secondhand smoke is when the people/person around you is/are/were smoke/smoking, not you- Poor nutrition- including diets low in fruits and vegetable and high sodium and saturated fats-. Lack of physical activity is also another cause.
To prevent a chronic disease from happening, you should control what kinds of food you eat to maintain a healthy diet. If someone in the room with you starts smoking, you should politely ask them to stop or exit the room. If someone asks you if you want to smoke, say no. Exercise at least 15 minutes a day.
