What are some of the techniques used to monitor volcanoes? What will be an ideal response?


Studies of gravity, magnetic fields, ground deformation, past volcanic deposits, and temperature plus
sampling of lavas, gases, and GPS.

Environmental & Atmospheric Sciences

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What is China's policy toward education for children of urban migrants who came from rural areas?

A) Migrants' children are welcomed in the schools in the cities to which they have migrated. B) The children must return to their parents' home villages and go to schools there. C) There is no official policy. D) Children of migrants must pay tuition that is twice that of children born in the cities. E) Education is not required for any children.

Environmental & Atmospheric Sciences

Because of geography's focus on where and how things are located, and why, the discipline is often called the ___________science

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

Why does Earth have dry land?

A. Earth has continental crust, which rides isostatically higher than oceanic crust because it is relatively thick and less dense. B. The mid-ocean ridges push up the bottom of the seafloor above sea level. Eventually there will not be any ocean left. C. There is not enough water to cover the surface completely. D. All planets of the solar system have dry land. E. All of these are correct.

Environmental & Atmospheric Sciences

Which action should fire fighters perform first before forcing a door?

a. gap the door b. look for a glass panel in or adjacent to the door c. sound the surrounding wall d. check for the presence of a dead bolt

Environmental & Atmospheric Sciences