Skin cancer is one of the most common types of cancer. It is also the most preventable in the following ways; by use of a good sunscreen usually one with SPF 15 or higher, avoid going outside between 10 and 4 when the sun is too hot, If you must go outside carry a hat and wear shades to protect your eyes and also by keeping young children’s exposure to sunlight as minimum as possible.
how to avoid skin cancer? – http://www.ehow.com/how_5020946_avoid-skin-cancer-painful-death.html
Calcium carbonate is also used to neutralize large amounts of stomach acids. Calcium carbonate is a good antacid because it is alkaline. Thus, it neutralizes highly acidic stomach juices and is used to treat heartburn, acid indigestion and upset stomach.
Why calcium carbonate rather than calcium hydroxide for neutralizing stomach acid? – http://wiki.answers.com/Q/Why_calcium_carbonate_rather_than_calcium_hydroxide_for_neutralizing_stomach_acid
The respiratory system responds by increasing the heart rate during vigorous exercises. This is caused by the extra oxygen needed by the body muscles during an exercise. The lungs pull in air for the body to produce energy through metabolism, while the high heart rates supply blood throughout the body.
How respiratory system responds to exercise? – http://wiki.answers.com/Q/How_respiratory_system_responds_to_exercise