Geography Iclicker Questions

The Earth is approximately how old?

4.6 billion years

Which of the earth's structural layers is the thinnest?

Lithosphere

dynamic equilibrium model refers to

a balancing act between tectonic uplift and rates of denudation by weathering and erosion in a given landscape

Convergent plate boundaries are characteristics of

collision zones between plates

Which of the following gives the correct sequence of layers in Earth, from the surface of the center?

crust, mantle, outer core, inner core

Delicate Arch in Utah is an example of

differential weathering

When rock strata are strained beyond their ability to remain an intact unit, displacement occurs in a process known as

faulting

The science that specifically studies the origin, evolution, form and spatial distribution of landforms is

geomorphology

The density of material below the Moho is ______ that above it

greater than

Figure shows that as the distance from a mid-ocean ridge increases, the age of the sea floor

increases

The west coasts of North America and South America are dominated by

mountain ranges

in most areas, the upper surface of bedrock is partially weathered to broken-up rock called

regoliath

Vertical elevation differences in a local landscape are referred to as

relief

Divergent plate boundaries are characteristics of

sea-floor spreading centers

Limestone is a type of ________ rock that forms when ________.

sedimentary; calcium carbonate precipitates, or organic material containing calcium carbonate accumulates in a water environment

Which of the following is incorrectly matched?

shearing-stretching ** shearing would be twisting

When geologists or archaeologists dig downward into a unit of rock or sediment, they are digging "back in time." This fact is based on the principle of ________.

superposition

A continental craton is best described as

the surface accumulation of molten rock

When geologists conclude that the Grand Canyon sequence of rocks was formed through hundreds of millions of years of disposition, mountain building, and erosion, they are basing his conclusion on the principle of:

uniformitarianism

Which of the following lists the correct sequence of divisions in the geologic time scale, from largest to smallest?

Eon --> Era --> Period --> Epoch

at a strike-slip fault

lateral shearing occurs

On average the thickness of the oceanic crust is ____ that of continental crust

less than Oceanic crust = 5km Continental crust = 30km

Earth's interior is layered because

materials became sorted based on density as the Earth solidified.

A rock transformed by heat and or pressure is referred to as a(n)

metamorphic rock

Uplift of the landscape creates ________ energy which is converted to ________ energy when materials begin to move downslope.

potential; kinetic