Question 6
Carbon Cycle - Please answer the following using the words in the word bank
(Word bank words can be used either once, or not at all).
Plants and other photoautotrophs use CO2 (carbon dioxide) in the process of to make and oxygen. Both plants and animals use oxygen in the biological process of and make CO2. The is the main regulator of CO2 in the atmosphere, because it covers most of the Earth, and CO2 dissolves easily in it. Millions of years ago, huge deposits of carbon were stored, which were formed from dead plants and other organisms. Today these carbon rich deposits are burned as fossil fuels, which include , , and . More CO2 is released in the atmosphere today than in the past because of the . But is a greenhouse gas, as is water, and methane, and too much CO2 and other greenhouse gases produced by human activities in the atmosphere may be responsible for human accelerated .
Word Bank:
coalozonenatural gasnatural gasoxygensoil erosionnatural gasdecompositionclimate changemethaneoceanoilgreenhouse effectfermentationoilrespirationphotosynthesiscoalburning of fossil fuelscarbon dioxidedecayedoilcarbon monoxideglucosecoal
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Blank 1: photosynthesis
Blank 2: glucose
Blank 3: respiration
Blank 4: ocean
Blank 5: marine
Blank 6: coal, oil, natural gas
Blank 7: respiration
Blank 8: atmosphere
Blank 9: organic
Blank 10: coal, oil, natural gas
Blank 11: climate change