How do greenhouse gases such as carbon dioxide cause global warming?

Answer & Explanation:

Greenhouse gases such as carbon dioxide and other gases trap some of the Earth's outgoing energy, which retains heat in the atmosphere, causing global warming.

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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.

a chair, a bed, and a toothbrush

explanation: