Amajor problem caused by humans is the contamination and depletion of resources. a. solar b. water c. wind

B. Water

Explanation:

Solar, water and wind are the renewable resources. They are abundantly available in nature and are replenishable. Due to human intervention the most affected resource is water. As water is required for various activities by human society. With the use in large scale such a resource is also contaminated by humans due to sewage discharge in water bodies, industrial discharge, disposal of wastes and even the cremation of humans a ritual practice is performed in water bodies. This will likely to deplete the available freshwater for future.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).