Answer to Question 1
Water is the most important nutrient because it is involved in almost every vital body process: in digesting and absorbing food, in producing energy, in the circulatory process, in regulating body heat and electrolyte balance, in removing waste products, in building and rebuilding cells, in transporting essential nutrients, and in cushioning joints and organs. Water is contained in almost all foods, but primarily in liquid foods, fruits, and vegetables. Caffeine-containing drinks are also acceptable as a water source
Answer to Question 2
As it burns, tobacco produces tar, a thick, sticky dark fluid made up of several hundred different chemicalsmany of them poisonous, some of them carcinogenic (enhancing the growth of cancerous cells). As you inhale tobacco smoke, tar and other particles settle in the forks of the branch-like bronchial tubes in your lungs, where precancerous changes are apt to occur. In addition, tar and smoke damage the mucus and the cilia in the bronchial tubes, which normally remove irritating foreign materials from your lungs.
Smoke from cigarettes, cigars, and pipes also contains carbon monoxide, the deadly gas that comes out of the exhaust pipes of cars, in levels 400 times those considered safe in industry. Carbon monoxide interferes with the ability of the hemoglobin in the blood to carry oxygen, impairs normal functioning of the nervous system, and is at least partly responsible for the increased risk of heart attacks and strokes in smokers.
Checking teeth and other physical examinations are an important part of horse care.
Increasing access to care for teen mothers is important because they have a higher rate of pregnancy ...
It is important for new employees to know the location of all fire extinguishers. (A) Pull the pin ...
Remote sensing and GIS are important tools
Climate change is an important vector for human diseases
When exercising outdoors, especially on a hot, sunny day, it is important to stay adequately hydrate