Science True or False
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
