Apocrine glands secrete in response to emotional stimuli
I think it took nearly 200 years because they had to prove the properties of cells and that took a very smart and committed group of people to do this so I took that nearly 200 years for someone to think about creating the cell theory.... this is just my thought.
Answer:
Salt melts ice essentially because adding salt lowers the freezing point of the water. ... Pure water freezes at 32°F (0°C).
Explanation:Water with salt (or any other substance in it) will freeze at some lower temperature.
