Answer: photosynthesis
Explanation: In photosynthesis, carbon dioxide and water reacts in the presence of sunlight to produce glucose and oxygen. In photosynthesis, oxygen is released in to the atmosphere while the glucose formed is stored in the plant as food. No carbon is introduced in to the atmosphere during respiration rather carbon dioxide is used up.
In respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide, water and energy. Carbon is introduced in to the atmosphere in form of carbon dioxide.
In forest fires and burning of fossil fuels, wood and fuels burn in sufficient supply of oxygen liberates carbon dioxide (CO2) but when it burns in insufficient supply of oxygen, it liberates carbon monoxide (CO). In both cases carbon is introduced in to the atmosphere in form of carbon dioxide or carbon monoxide.
Answer:
C- Climate
Explanation:
Climate is those patterns over a long period of time.
Answer:
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Histone acetylation increase transcription.
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Whereas DNA methylation decrease transcription
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Explanation:
Histone acetylation is a transcription-activating modification which occurs by the addition of acetyl group from acetyl coenzyme A, to one or more lysine residues at the ε-amino group by the enzyme histone acetyltransferases. Histone acetylation increase transcription.
DNA methylation is one of the mechanisms that cells use to control gene expression and DNA become unavailable for transcription . In DNA methylation, DNA become inactive( unavailable for transcription) so that transcription wouldn't occur.
