Atmospheric Systems Flashcards
1
Q
atmosphere
A
- 1100km in depth
- stratosphere and troposphere are where most reactions happen
2
Q
greenhouse effect
A
- gases in the atmosphere reduce heat losses
- trap heat energy that is reflected from the earths surface
3
Q
gases that contribute to the greenhouse effect
A
- carbon dioxide
- methane
4
Q
factors influencing carbon
A
abiotic
- temperature
- precipitation
biotic
- plants
- animals
5
Q
ozone
A
- three oxygen molecules
- found in stratosphere and troposhere
6
Q
ozone layer
A
- between altitudes of 20km and 40 km
- between 1-10 parts per million
7
Q
ozone hole
A
- amount of ozone is decreased significantly during the spring
- over last 30 years minimum level of ozone has reduced
8
Q
effects of uv radiation
A
- genetic mutation
- damage to living tissues
- skin cancers
- suppression of the immune system
- stimulates production of vitamin d in bodies
- used as steriliser
9
Q
chlouroflourocarbons
A
- release chlorine atoms
10
Q
hydroflourocarbons
A
release carbon atoms with shorter lifespan
11
Q
effect of ozone depleting substances
A
- chlorine atoms in the atmosphere react with ozone causing ozone destruction
- chloroflourocarbons stay in the atmosphere for up to 100 years
12
Q
how to reduce ozone depleting substances
A
- altering the human activity producing pollution
- regulating and reducing the pollutants at the point of emission
- clean up and restoration
13
Q
urban air pollution
A
- 1 billion people exposed to outdoor air pollution each year
- 1 million people die prematurely
14
Q
formulations of particulates
A
- burning any organic material or fossil fuel releases small particles of carbon
15
Q
dangers of particulates
A
- respiratory filters cant filter them out causing asthma and lung cancer
- particulates are carcinogenic
- crops become covered
