You go to a hair salon for a haircut and end up buying a tube of styling gel as you're checking out. the haircut is a(n) whereas the styling gel would be considered a(n)

For the first blank space put:  Intangible service

For the second blank space put: Tangible service

Ithink the answer is d.

Well,what i learned was that unlike many other  endothermic  reactions,  photosynthesis  does not absorb energy as heat. instead, during plants absorb energy from sunlight to turn carbon dioxide and water into oxygen and glucose, which is a type of sugar molecule. the energy is stored in the glucose molecules, ready to be used when needed.