True or False: Under the physical influence of gravity, the heavy, dense iron sank to form the core, leaving the less dense silicates to form the mantle

Indicate whether this statement is true or false.


Answer: TRUE

Environmental & Atmospheric Sciences

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The following table shows three fields of a land use layer with 10 polygons. The following questions relate to a series of queries in continuous sequence.LucodeCosthaHectare200200004.574001000010.50300100003.31300100000.44300100000.10300100000.72200150001.10300100000.19200150000.75200150000.78Next, you set up the expression, costha >= 15000, and click "Add to current selection." How many records are selected?

What will be an ideal response?

Environmental & Atmospheric Sciences

Human movements are a result of

A) push and pull factors. B) natural disasters. C) forced relocation. D) the environment.

Environmental & Atmospheric Sciences

Rainfall in deserts ________

A) totals just as much as in humid areas B) is incapable of moving much material C) is usually associated with slow runoff D) is usually intense and of short duration E) lasts for many days when it does come

Environmental & Atmospheric Sciences

Which of the following statements describes an acidic solution?

A. [H3O+] > [OH-] B. [H3O+] < [OH-] C. [H3O+] × [OH-] ? 1 × 10-14 D. [H3O+]/[OH-] = 1 × 10-14 E. [H3O+]/[OH-] = 1

Environmental & Atmospheric Sciences