The Earth's Cycles - Water and Carbon

What happens to air when it is heated?

• Nothing

• It falls

• It rises

• It moves sideways

True or false:

Water is evenly distributed across ecosystems.

• True

• False

Select the options which contain carbon.

• Carbohydrates

• Proteins

• Fats

• DNA

• Carbon dioxide

Air can hold more water vapour when it is:

• Colder

• Warmer

Which of the following have contributed to an increased level of CO₂ (carbon dioxide) in the atmosphere?

• Burning coal

• Driving petrol and diesel powered vehicles

• Bushfires

• Deforestation

• People have more house plants

Select the correct options with regard to the carbon cycles.

• The biological carbon cycle is fast

• The biological carbon cycle is slow

• The geological carbon cycle is fast

• The geological carbon cycle is slow

Pick the correct sequence for the water cycle.

• Water evaporates > Rain > Water vapour rises > Water vapour condenses forming clouds > Water vapour cools

• Water evaporates > Water vapour condenses forming clouds > Water vapour cools > Water vapour rises > Rain

• Water vapour rises > Water vapour cools > Rain > Water vapour condenses forming clouds > Water evaporates

• Water evaporates > Water vapour rises > Water vapour cools > Water vapour condenses forming clouds > Rain

What are two examples of carbon sinks?

Briefly describe how wind occurs.

In 1-2 sentences, outline a path some carbon might take in the biological carbon cycle.