Air quiz


1) What is global warming?
a) the current increase in the average temperature during summer
b) the current increase in the average temperature of our planet's air, oceans and crust
c) the current increase in the average temperature of the Earth's near-surface air and oceans and its projected continuation
d) the projected increase of atmospheric greenhouse gases in the future

2) What is the Kyoto protocol?
a) a law to stop the use of CFC which harm the ozone layer
b) an international guideline for the promotion of natural resources and protection of biodiversity
c) an international rule forcing all countries to declare and reduce their greenhouse gas emissions by 50% for 2012
d) a guideline signed by many countries aimed at reducing greenhouse gas emissions

3) Which unit is used to measure atmospheric ozone?
a) millimeters units
b) Dobson units
c) Edison units
d) m³ units

4) Why is ozone depletion in the stratosphere worrying?
a) because the ozone layer protect us from the greenhouse effect
b) because the ozone layer protects us from the sun's harmful ultraviolet rays
c) because it is harmful for us to breathe ozone
d) because it causes icebergs to melt down

5) Which one of these is false?
a) the ozone hole over the Antarctic is caused by chemical reactions with chemicals released by men
b) the ozone hole over the Antarctic reaches its maximum in June
c) the ozone hole over the Antarctic is seasonal
d) the ozone hole over the Antarctic is much smaller in December, when the ozone-destroying chemical reactions have stopped

Hint ↓
6) Which of these satellites is not used to collect meteorological data?
a) Meteosat-8
b) SeaWIFS
c) Quickbird
d) Aqua

Hint ↓
Tropical storms with winds reaching 33 m/s have different names depending on their location:
Hint ↓
7) In the Northwest Pacific Ocean (west of the dateline) they are called:
a) hurricane
b) severe cyclonic storm
c) typhoon
d) severe tropical cyclone

8) In the Southeast Indian Ocean, they are called:
a) hurricane
b) severe cyclonic storm
c) typhoon
d) severe tropical cyclone

9) In the North Atlantic Ocean, they are called:
a) hurricane
b) severe cyclonic storm
c) typhoon
d) severe tropical cyclone

10) In the North Indian Ocean, they are called:
a) hurricane
b) severe cyclonic storm
c) typhoon
d) severe tropical cyclone

11) What is "smog"?
a) a layer of ozone in the stratosphere
b) a ground level mixture of ozone and of fine particles of air pollutants
c) air pollutants causing the ozone hole
d) a cloud which produces acid rains

12) What is the common ground for Radar (RAdio Detection And Ranging) and Lidar (Light Detection and Ranging)?
a) both generate their own outgoing signal (they are active sensors)
b) both cannot generate outgoing signals but only receive signals (they are passive sensors)

13) How have carbon dioxide (CO2) concentrations evolved since 1997 in Hawaii?
a) mean CO2 concentrations have decreased
b) CO2 concentrations oscillate every year but the mean is staying at the same level since 1997
c) mean CO2 concentrations have increased
d) we don't know because CO2 concentrations are impossible to measure

14) What is El Niño?
a) a climatic event characterised by very strong trade winds promoting vigorous upwelling of cold water along the coast of Peru
b) a climatic event characterised by unusually warm sea surface temperature in the equatorial Pacific Ocean
c) a climatic event characterised by unusually cold sea surface temperature in the equatorial Pacific Ocean
d) a climatic event characterised by weak trade winds promoting vigorous upwelling of cold water along the coast of Peru


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