. At a given water/cement ratio, a change in the cement content or aggregate grading can be made to increase the consistency of concrete. Why is it not desirable to produce concrete mixtures of a higher
consistency than necessary?

Since gaining independence from spain and portugal, many latin american nations have faced similar struggles. choose a common issue discussed in this lesson, such as the influence of military dictatorships, struggles with democracy, or continuing revolutions and coups. in a short paragraph, discuss how that struggle has affected two latin american nations.

In 2004 how many nightly car accidents were there

This is a major archaeological site that was once a regional center to the mayan empire in ancient mesoamerica.