Links between water and carbon cycles

What is the role of the greenhouse effect in the water cycle?

• It decreases the evaporation of water from oceans.

• It increases the evaporation of water from oceans.

• It has no impact on the evaporation of water.

• It only affects transpiration rates.

How do plants contribute to the water cycle through transpiration?

• By reducing water uptake from the soil.

• By increasing water uptake and transpiration.

• By storing water in their leaves.

• By decreasing photosynthesis rates.

What is the impact of phytoplankton photosynthesis on carbon in the ocean?

• It decreases carbon diffusion into the ocean.

• It increases carbon diffusion into the ocean.

• It has no effect on carbon levels.

• It only affects terrestrial plants.

How does increased plant growth in large forests like the Amazon affect the carbon cycle?

• It decreases carbon uptake.

• It increases carbon uptake.

• It has no impact on carbon levels.

• It only affects oceanic carbon levels.

What happens to ocean acidity when CO2 exchanges are not balanced?

• Ocean acidity decreases.

• Ocean acidity remains the same.

• Ocean acidity increases.

• Ocean acidity only affects mollusks.

How does the solubility of CO2 in the oceans change with sea surface temperatures?

• It increases with higher temperatures.

• It decreases with lower temperatures.

• It increases with lower temperatures.

• It remains constant regardless of temperature.

What effect do atmospheric CO2 levels have on the oceans?

• They decrease thermal expansion.

• They increase thermal expansion.

• They have no effect on thermal expansion.

• They only affect ocean acidity.

What is the impact of atmospheric CO2 levels on global ice stores?

• They decrease the melting of ice stores.

• They have no effect on ice stores.

• They influence the Greenhouse Effect, impacting the melting of ice stores.

• They increase the formation of ice stores.

How does melting sea-ice affect water storage in soils?

• It decreases water storage in soils.

• It has no effect on water storage.

• It increases water storage due to greater organic content.

• It causes water storage to become acidic.

What role does soil play in the release of CO2 into the atmosphere?

• It prevents the release of CO2.

• It has no effect on CO2 release.

• It affects decomposition rates and CO2 release through temperature and rainfall.

• It absorbs CO2 from the atmosphere.