The common mineral ________ is an example of an isolated silica tetrahedron structure.

Sudden movement on a fault can cause a tsunami when

A) a hurricane or cyclone is occurring. B) the fault suddenly uplifts or downdrops the seafloor. C) hot water trapped below the seafloor is released. D) a fault on land has a large displacement. E) None of these are correct.

Why might total water use per capita be a poor choice for comparing the

amount of water used by people in diff erent states? What will be an ideal response?

Nigeria's cultural diversity is summed up by

A) the diverse ecosystems that make up the country. B) the more than 500 distinct languages spoken there. C) its location in western Africa. D) its colonial history under the British. E) the movement of the capital from Lagos to Abuja.

The tropopause separates the troposphere from the _______________

Fill in the blank(s) with correct word