What is the source of approximately 70 percent of mexico city's water?

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

What in scientific term why the salty popcorn causes this thirst

In general, are there any major differences that you can see? explain