IB Global warming

Idenify the type of radiation emitted from the Earth's surface when it heats up

• UV radiation

• X rays

• Infra red radiation

• Microwaves

Which greenhouse gas is released from the breakdown of organic matter in anaerobic conditions?

Identify the gas that is not a greenhouse gas

• Oxides of nitrogen

• Carbon dioxide

• Water vapour

• Oxygen

Why is their an annual drop in carbon dioxide concentration in the atmosphere?

• Due to increased photosynthesis in the southern hemisphere summer

• Decreased photosynthesis in the northern hemisphere winter

• Due to increased photosynthesis in the northern hemisphere summer

• An annual fluctuations in solar radiation

Identify the cause of increased decomposition of detritus

• Areas become desert

• Melting of permafrost

• Melting ice caps

• Extreme weather events

Identify the substance deposited by reef-building corals that is decreasing because of ocean acidification

• Sulphur dioxide

• Hydrogen carbonate ions

• Calcium carbonate

• Carbonic acid

State the term that describes a similar pattern between two variables e.g. a rise in atmospheric carbon dioxide concentration over time AND an increase in the mean global temperature

What percentage of solar radiation reaches the Earth's surface?

• 7%

• 17%

• 75%

• 100%

State the term that describes the transfer of carbon from one sink to another sink

Identify the process the process responsible for an increasing release of carbon dioxide into the atmosphere over the past 200 years

• Combustion

• Photosynthesis

• Fossilization

• Heterotrophic nutrition