well i can say for sure that it dose not steadily increase. the troposphere gets colder as you ascend so its the exterior temperature slowly decreases. (apex)
<span>Sinkholes, especially like the one that occurred in Mexico City, are often sign that the water reservoir is being depleted. Usually, the water underneath the ground helps stabilize it, however if there is suddenly open space or a cavern, it can collapse on its self causing a sink hole. This could also happen from fracking and drilling.</span>