CO2 is returned to the atmosphere by all methods EXCEPT A) combustion. B) decomposition. C) photosynthesis. D) respiration.
2 answers:
Answer : The correct option is, (C) photosynthesis
Explanation :
Photosynthesis : It is a chemical process that occurs in the green plants. During photosynthesis process, carbon dioxide reacts with water in the presence of sunlight to gives glucose as a product and oxygen as a byproduct. In the photosynthesis reaction, carbon dioxide and water molecule are the reactants.
The balanced chemical reaction will be,
Whereas the combustion , decomposition and respiration are the chemical reactions in which the carbon dioxide is produced as a product.
Hence, the correct option is, (C) photosynthesis
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Answer:
From the diagram X = <u>base pairs</u>
Explanation:
Genetic information stored within DNA is used for growth, reproduction, and cell repair. DNA, deoxyribonucleic acids, are long-chain, helical macromolecules made of specific sequences of covalently bonded monomers called nucleotides.
Nucleotides comprise:
- a 5-Carbon deoxyribose sugar,
- one nitrogenous base (adenine, guanine thymine, and cytosine)
- and a phosphate group.
Nitrogenous bases cause nucleotides to form hydrogen bonds with other nucleotides as base-pairs. The four types of bases each make the nucleotides Thymine and Cytosine (pyrimidine bases) along with Guanine, and Adenine, (purine bases). In base-pair formation, Adenine forms double bonds with Thymine, and cytosine forms triple bonds with guanine.
