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What does photosynthesis use sunlight to convert water and carbon dioxide into what?

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.

Does photosynthesis convert carbon dioxide to oxygen?

For a probable answer, see here. Bottom line: Green plants DO NOT convert carbon dioxide (CO2) into oxygen (O2). The oxygen produced during photosynthesis comes from water. During photosynthesis, green plants DO, however, convert atmospheric CO2 into sugars.

What is the greatest source of CO2?

Main sources of carbon dioxide emissions

  • 87 percent of all human-produced carbon dioxide emissions come from the burning of fossil fuels like coal, natural gas and oil.
  • The largest human source of carbon dioxide emissions is from the combustion of fossil fuels.

What is a natural source of carbon dioxide?

Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product. Human activities that lead to carbon dioxide emissions come primarily from energy production, including burning coal, oil, or natural gas.

What are three sinks of carbon dioxide?

The main natural carbon sinks are plants, the ocean and soil.

How healthy soils can reduce the amount of CO2 in the atmosphere?

When the plants die, soil microbes break down their carbon compounds and use them for metabolism and growth, respiring some back to the atmosphere. Because microbial decomposition releases carbon dioxide, the soil can store more carbon when it is protected from microbial activity.

How do you capture carbon dioxide from the air?

Direct air capture is a technology to capture CO2 from the atmosphere. The CO2 can be permanently stored in deep geological formations or used in the production of fuels, chemicals, building materials and other products containing CO2.

Is direct air capture expensive?

How Much Does Direct Air Capture Cost? The range of costs for DAC vary between $250-$600 today depending on the technology choice, low-carbon energy source and the scale of their deployment. For context, most reforestation costs less than $50/tonne.