The hole in the Ozone Layer
Because when salt dissolves, it makes the water more dense, and things float better on a denser surface.
Answer:
Problem Question
Imagine that you communicate with an applying simple, and he mentions in one letter that he lives by the ocean, but he has never experienced tides. To explain what affects the tides, you can use what you have experienced, and how he should tell what sort of tide he can expect.
This must be in letter format, so be sure to adjust your thoughts including paragraphs. Be sure to include the following information in your letter:
What activates tides
Position of both the sun and moon
Enhanced vs. low tide
Spring vs. Tides of both the Neap
Explanation:
The myelination of axons or the presence of the myelin sheath regulates the conduction velocity of the nerve impulses by acting as an insulator to the nerve fibers. The spaces or gaps between each myelin sheath are called the nodes of Ranvier and the impulse go from one node to another. This phenomenon is called saltatory conduction.
Nice to know: The myelin sheath in the central nervous system is provided by cells called oligodendrocytes. On the other hand, the myelin sheath in the peripheral nervous system is provided by cells called the Schwann cells.