Which of the following is a disadvantage of wind as an energy source?
o
a. it does not use fossil fuels.
b. it is a nonrenewable resource.
o
c. it may alter habitats and harm birds.
o
d. it produces greenhouse gases.

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.

it is either c or d and i know for sure it is not a or b