As water pressure changes, the volume of air in a bladder. pressure tank contracts and expands. Periodically, the amount. of air in the tank should be measured and the tank recharged if. the air is too low. Bladder pressure tanks do not provide any. useful water storage capacity.
Add Image. Exotic Materials are the strange and unusual elements produced by science, nature, or some strange alien force. Such materials could be alloys, isotopes, chemicals, and such.
What are very toxic materials? Very toxic materials are substances that may cause significant harm or even death to an individual if even very small amounts enter the body. These materials may enter the body in different ways (called the route of exposure). The most common route of exposure is through inhalation (breathing it into the lungs).