Science True or False

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True

All the material eroded by the wind is eventually deposited

False

An air mass that forms over Mexico is classified as an mP air mass

False

An element may be made of more than one type of atom

True

Human activities contribute to the ocurrence of floods

True

In order for a theroy to become a law, it must be proven correct everytime it is tested.

True

Ionic and covalent are types of bonds

True

Isostatic adjustments can occur as a result of the erosion of the mountain ranges

True

Fossil records provide a clues to earlier positions of lithospheric plates

True

Fossils are most commonly preserved in sedimentary rock

True

Geologic column is an arrangement of rock layers based on the ages of the layers

True

Hotsprings generally have tempuratures at or very near the boiling point of water

True

Rocks that do not allow water to pass through them easily are called impermeable

True

most evaporation occurs in regions around the equator

False

most weather changes take place in the stratosphere

true

pedocal soils are less acidic than pedalfer soils

flase

the b horizon usually contains the most organic matter

False

the earth's oldest rocks are found along the mid-atlantic ridge

true

the hydrologic cycle is another name for the watercycle

True

three polar air masses influence weather in North America

False

Tsunamis are seismic waves that travel through the earth's core

True

Waves break primarily as a result of friction

True

Wind produces both surface currents and waves

True

a disconformity is a type of gap in the geologic record

True

a valley glacier generally forms in mountainous areas

False

glaciers often form V-Shaped valleys

True

Air and water are nonrenewable resources

False

Air pressure increases with elevation

False

A few areas on earth contain a complete record of geologic time

False

A major zone of active volcanoes encircles the Atlantic ocean

False

Athrust fault has no hanging wall

True

Clouds require condensation nuclei in order to form

False

Eras are subdivisions of periods

False

Meterology is the study of the earth's oceans

False

Minerals are renewable resources

False

Minerals re organic solids that are formed in the earth

false

Mohs scale is used to describe the density of minerals

True

Nearly 3/4 of the earth's surface is covered by oceans

True

On a topographic map, elevation is represented by contour lines.

False

Once a groundwater aquifer has been emptied, it will never be productive again.

False

P waves travel more slowly than S waves

False

Sea Cliffs usually erode evenly

True

The earth is believed to be about 4.6 billion years old.

True

The earthquakes that cause the most damage usually have a shallow focus

True

The global ocean is divided into three principal oceans

True

The latitude of the equator is 0 degrees

True

The lithosphere is made up of the solid part of the upper mantle and the crust

False

The lowest clouds in the sky are cirrus clouds

False

The ocean floor is composed mainly of continental crust

False

The orbit of Landsat satellite around the earth is geosynchronus

False

The radioactive decay rate is greatly affected by tempuratureq

True

The similar age and types of rocks from western Africa and eastern Brazil support the theroy of Continental drift.

false

abrasion is a chemical weathering process

False

all surface current north of the equator flow in the counterclockwise direction

True

any one of the three types of rock can be changed into any other class

false

chemical and mechanical are two types of erosion

True

the Coriolis effect is caused by the earth's rotation

False

fossil fuels are available in limitless supplies

False

silicate minerals make up more than 90% of the earth's crust

True

solid rock located deep in the mantle is called magma


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