<span>Mexicans have access to first-world infrastructure and high-velocity Internet speeds in Mexico City, in pockets along the border with Texas, and in business centers like Monterrey and Guadalajara, but the vast majority of Mexicans live beyond the reach of the digital age. About 82 million people — 70 percent of Mexicans — have no access to a computer or the Internet, according to the Mexican Internet Association, or AMIPCI.</span>
Sinkholes are common where the rock below the land surface is limestone, carbonate rock, salt beds, or rocks that can naturally be dissolved by groundwater circulating through them. As the rock dissolves, spaces and caverns develop underground.
Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids. Drought, along with resulting high groundwater withdrawals, can make conditions favorable for sinkholes to form.
And scientists say it will take natural processes 6,000 years to refill the reservoir
