Which fact is true about the inner core layer of the earth? A) The inner core is Earth's thinnest layer. B) The inner core provides the magma for volcanoes. C) The inner core is hotter than the surface of the sun. Eliminate D) The inner core contains the least amount of pressure.

C.  The inner core is hotter than the surface of the sun.

Explanation:

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advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.