They are what keep the environment more safe. Without funding to these people crime rates would significantly increase and would cause more danger in the environments such as roads not being properly maintained.
I would either answer sanitation(pollution) or corruption
La unidad en que suele medirse la altura sobre el nivel del mar es el metro<span>. Se habla pues de </span>metros sobre el nivel del mar.
If you could dig a tunnel right through the Earth you could theoretically free-fall to the centre of our planet in just eighteen minutes. You can’t, of course: such a tunnel would have to tolerate temperatures as high as the surface of the Sun and pressures three and a half million times greater than those at the Earth’s surface.
