The importance of Water and Carbon to Life

What is the second largest store of carbon on the planet?

• Land

• Atmosphere

• Oceans

• Biosphere

What is the 'Goldilocks zone'?

• A zone with perfect temperature for water to exist

• A zone with extreme temperatures

• A zone with no water

• A zone with excessive water

How do oceans moderate temperatures?

• By absorbing heat and releasing it slowly

• By reflecting solar radiation

• By absorbing CO2

• By evaporating water

What percentage of all living organisms is made up of water?

• 5-25%

• 25-45%

• 45-65%

• 65-95%

What is the process by which plants convert CO2, sunlight, and water into glucose and starches?

• Respiration

• Transpiration

• Photosynthesis

• Evaporation

What is the main use of water in people and animals?

• To generate electricity

• To transport mineral nutrients

• To moderate temperatures

• To manufacture food

What is the main use of water in industries?

• To generate electricity

• To manufacture food

• To provide recreational facilities

• To satisfy public demand

Apart from its biological significance, what is carbon used for?

• To moderate temperatures

• To generate electricity

• To power the global economy

• To manufacture food

What are the main stores in the global water cycle?

• Atmosphere, oceans, and land

• Oceans, soil, and biosphere

• Sedimentary rocks, atmosphere, and oceans

• Land, biosphere, and atmosphere

Where is most of the carbon on Earth stored?

• Atmosphere

• Oceans

• Soil

• Sedimentary rocks