All about earth and its shape

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What is the earth divided into ?

4 major parts -lihosphere -bioshpere -atmoshpre -hydroshpere

How much of the earth is covered by tyhe hydrosphere?

70%

how much percent is earths water salt?

97 percent

What is found in the troposphere?

In the troposphere wind, snow and air are found there (this is where life lives and weather occurs)

What is the potential harm from UV rays?

The harmful rays of the sun can cause burns or skin cancer.

WHat part of the earth had the most nitrigen?

Troposphere

What is a shpere?

a 3 demsional shape and is cirular

What is shape of earth drawn to scale?

a circle

which object best represents a true scale modell of the shape of earth?

a table tennis ball

What is the atomic pressure of the stratopause?

close to 0

Oxygen is the most abundant element by volume in earths

crust

Which layer of earth had the most oxygen by percent volume?

crust

as the altitude increases what happens to the atomospheric pressure?

decreases

From the tropopause to the stratopause what happens to the tempeture?

increaes

equitorial diameter-

is measured side to side and form east to west or vise versa

Are circles 3 deminsional?

no 2 deminonsional

Earths troposphere, hydrosphere and litosphere contain relatively large amounts of which element?

oxygen

what is the formula to find roundness ratio?

polar divided by equatorial

Technically the force of gravity standing on the poles would be ____ than the force of gravity when stading on the poles. Therefore you would weigh _____ at the poles.

more, more

Is the earth perfectly smooth?

no we have different terrians

Is a shpere a circle ?

nooooo

What is earths true shape?

oblate shperoid

where do you weigh more the poles or the equater?

poles

Lithosphere/ Geoshpere-

rocks and dirt this is the land shpere it makes up the earths cruts and outer mantle esrt -pg 10 and 1

Does earths hydroshpere contain more salt or fresh water?

salt water

Which atmospheric layer contains the greatest concentration of ozone?

stratosphere

In which two temp zones of the atomosphere does the temp icrease with increasing altitude?

stratosphere and thermosphere

Eratosthenes of syene -

the assumtion the the earth is round due to sun rays and measurments for different places

Where is there more gravity at the poles or the equater and why?

there is more gravity because there is less distance between the poles and earths center of gravity

An air temp of 95 degress celcuis most often exists in which layer of the atomosphere?

thermoshpere

what happens as a ship sails away from an observer

they drop below the horizion line

Hydrosphere-

think of water its layer contains all of earths water like liquids gases solids and ice erst- pg 1

Where is all the weather found?

troposphere

Which part of the atomsphere do we live in?

troposphere

Which temp zone of eartghs atomsphere contains the most water vapor

troposphere

which layer of the atomsphere contains all the water vapor?

troposphere

True or false the equitorial diameter is slighty larger than the polar diameter

true

Technically the force of gravity standing on the equater would be ____ than the force of gravity when stading on the poles. Therefore you would weigh _____ at the equater.

less, less

Earths hydrosphere is best described as

liquid outer layer of the earth

List evidence of earths shape

- the shape of earths shadow during an eclipse is curved - photos of earth were taken from space -polaris changes altitude asyou chande latidude thus can only happen with spherie shape - Eratosthenes of syene

What is the atmospheric pressure of the Tropoause? use your notes

0.25 atm

Which of the following is NOT evidence that suppports earths spherical shape?

1) photos taken from outer space 2)ships appearing to sink as they sail past the horizion 3)changing seasons 4)thge similarites in grsvity at sea level all over earth (3)

What is the altitude of the stratopause in km?

50 km

True or False The diameter between the equatorial model and the polar model is very close in number but polar is a little bit larger

False

What did Industrialized countries do to help reduce this thinning?

Industrialized countries signed contracts to to no longer use produce or use things containing CFC.

Bioshpere-

means life its contains all living things such as animals trees plants people grass and etc

at what boundary is the coldest temperature found?

Mesopause

Where does most of the heat come from in the troposphere?

Most of the heat from the troposphere come from Earth's surface.

Why do pilots fly in the stratosphere?

Most pilots fly in stratosphere because there is less air turbulence and less friction

In the video, what molecule was helping to thin or put a hole in the ozone layer?

The CFC molecule which stands for chlorine fluoride carbon.

What does the ozone layer absorb?

The ozone layer absorbs the harsh uv rays of the sun to protect us.

How does ozone form?

The ozone layer is formed when an oxygen atom recombines with an oxygen molecule

What important layer is found in the stratosphere?

The ozone layer is found in the stratosphere which is very important.

What causes weather to be found mainly in the troposphere?

The weather is mostly found in the troposphere because of the rising and sinking of air.

True or False only 3 percent of our water is fresh and 2 percent of its frozen

True

Atomoshpere-

air and vapor this is the thin layer of gas that surround us and gives us air to breath plus photosyinthesis and the greenhouse effect erst- pg 14

what is the unit that is used for pressure?

atm

In which order are the spheres of earth listed in order of increasing density?

atmosphere, hydrosphere, lithosphere

what two parts is the litosphere broken down into?

crust and rigid mantle

Why is earth flat at the poles and bulding at the equator?

earths rotation

polar diameter-

is measured up and down from north to south pole

Describe why the earth is not a perfect sphere

it bulges at the equator and is flattened at the poles

what is the ozone layer and what layer is it found in ?

its a layer of o3 of gas which is the ozone and it is found in the stratosphere


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