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WorksheetsEnvironmental Science Atmosphere
Total questions: 20
Worksheet time: 13mins
The layer of the Atmosphere that contains the Ozone layer
Troposphere
Stratosphere
Mesosphere
Thermosphere
The layer of the Atmosphere that cools in a relatively linear fassion from around +20 degrees C to -60 degrees C
Troposphere
Stratosphere
Mesosphere
Thermosphere
99.9% of all the gases of the atmosphere are found in which two layers of the atmosphere?
Troposphere
Stratosphere
Mesosphere
Thermosphere
If there was no greenhouse effect what would the mean temperature of the Earth's surface be?
4 degrees colder
33 degrees colder
75 degrees colder
100 degrees colder
Select the main gases that act as greenhouse gases
Carbon dioxide
Methane
Water vapour
Oxygen
Stratospheric Ozone
What category of ice is this: A large body of ice moving over the land under its own weight
Ice Sheet
Ice Cap
Ice Field
Glacier
SIce shelf
What causes sea level rise? Select the most appropriate answers
All ice melting from the arctic
All land ice melting
Thermal Expansion of seawater
All Land and sea Ice melting
Thermal expansion of freshwater
The reflective abilities of a surface is known as?
Labedo
Lamada
Granada
Alemo
Albedo
This involves taking an estimate of one factor that cannot be measured by using a related factor that can be measured.
False data
Proxy data
Credibe data
Dobson data
Fabricated data
Two processes drive the North Atlantic Conveyor. What are the correct statements?
Water in the Caribbean evaporates causing the sea to be more salty that the North Atlantic
Water in the North East Atlantic sinks as it cools and becomes more dense.
Prevailing winds blowing from the South west to the North East
Prevailing winds blowing from the North west to the south East
Water in the Caribbean sinks as it cools and becomes less dense.
El Nino mainly affects which ocean current?
North Pacific
South Pacific
North Atlantic
South Atlantic
South East Indian Ocean
What are the correct statements about the El Nino effect
Less upwelling from deep waters off the South American coast
More Nutrients in surface waters off the South American coasts.
Ocean currents drive warm water from East to West in the Pacific
Ocean currents drive warm waters West to East in the Pacific
Higher risk of drought in Eastern Australia
CFCs are man made chemicals. What were they used for? Select the correct statements
Propellants
Refrigerators
Manufacturing of fertilizers
Air conditioning units
Paint thinners
Properties that made CFS useful in industry. Select the correct statements
Non-toxic
Low boiling points
High reactivity
Not flammable
High luminosity
How is ozone formed in the stratosphere?
An Oxygen molecule absorbs UV and splits into two atoms. One atom then combines with another oxygen molecule.
Ozone molecule absorbs infrared to become oxygen. Two oxygen molecules combine to reform ozone.
An Oxygen molecule absorbs infra red and splits into two atoms. One atom then combines with another oxygen molecule.
An Oxygen atom absorbs UV and splits into two molecules forming ozone
The name of the agreement in which all members of the UN signed to limit and phase out the use of CFCs
Paris Agreement
COP 87
Montpellier Treaty
G8 87
Montreal Protocol
Unit to measure Ozone
Johnson Unit
Thompson Unit
Robson Unit
Dobson Unit
Armason Unit
Not a risk of UV radiation on life
Skin cancer
Cataracts
DNA damage
Reduction of photosynthesis in plants
Cross fertilisation between species
Two scientists Rowland and Molina identified key properties of CFCs that makes them good at degrading ozone. What are they?
Highly stable
UV causes chlorine to dissociate from CFCs
Carbon reacts with oxygen to form carbon dioxide, a global warming gas
Chlorine reacts with oxygen to form Chlorine monoxide, so less oxygen available to form ozone
Highly unstable
Examples of positive feedback mechanisms that will lead to increase global temperatures.
ocean acidification
melting of permafrost
increased soil decomposition
higher rates of photosynthesis removing carbon from the atmosphere
Increase in the release of methane hydrate from the oceans
