Quiz Questions

Near a high-pressure weather system (also called an anticyclone), clouds are unlikely to form. Why is this?

air flows downward and outward from a high

the upper mantle can be divided into two zones, the

asthenosphere in the lower upper mantle and part of the lithosphere in the upper part of the upper mantle

The ocean current called the Gulf Stream

carries heat from the Gulf of Mexico to the North American coast and Northern Europe.

Divergent boundaries are areas of

crustal formation

igneous rock is formed from

crystallization of magma, high temps and pressures acting on subsurface rock, lava that freezes on earth's surface

A depositional landform that is produced where a stream meets the sea is a

delta

What kind of erosion produces sinkholes?

groundwater erosion

The troposphere is warmed mostly by

long wave radiation

Alfred Wegener supported his theory of continental drift by

making a connection between the rocks, rock structures, and plant and animal fossils found in both Africa and South America

Color is not a reliable means for mineral identification because

minerals can weather and change color

the two most common igneous rocks are basalt and granite. Basalt is commonly found ____ and granite is found ____

on both the ocean floor and continental land; only on the continents

Wind is due to

pressure and temperature differences in the atmosphere

The layered appearance of foliated metamorphic rocks is due to the

realignment of minerals so that they are perpendicular to comprehensive forces

The erosion of wind is most like the action of

sandpaper

Based on its abundance in Earth's crust, most rocks contain a mineral composed of the elements oxygen and

silicon

What is the lowest level that sediment from a mountain can be transported to?

the bottom of the sea

Temperatures in Earth's atmospheric layers vary in a zig zag pattern with altitude principally because

the chemical composition of the atmosphere varies

The theory of plate tectonics states that

the lithosphere is broken up into several plates that move about as a result of convective motion in the asthenosphere.

Velocity of seismic waves depends on

the type of material is travels through

What is ozone?

A gas consisting of molecules containing three oxygen atoms, a gas that resides in the stratosphere, a gas that blocks uv radiation from reaching earth

How is the atmosphere like a florist's greenhouse?

Both trap long-wave electromagnetic radiation

A mineral that is not a silicate is

Calcite

The theory of seafloor spreading is supported by

Paleomagnetic analysis of the ocean's floor

Some ________ rock is formed from minerals that were once dissolved in water.

Sedimentary

As glaciers and streams move they carry loads of sediment with them... but where is the sediment ultimately going to?

The shore