what is photosynthesis
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what is ecosystem
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what is precipitation
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what is exothermic reaction
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what is endothermic reaction
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what is base
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what is acid
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Answers
Answer:
1) Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy. Here, we describe the general principles of photosynthesis and highlight how scientists are studying this natural process to help develop clean fuels and sources of renewable energy.
2) An ecosystem is the basic unit of the field of the scientific study of nature.
3) the act or process of pacifying : the state of being pacified called precipitation
4) An exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative."[1][2] Exothermic reactions usually release heat and entail the replacement of weak bonds with stronger ones.[3][4] The term is often confused with exergonic reaction, which IUPAC defines as "... a reaction for which the overall standard Gibbs energy change ΔG⚬ is negative.
5) base is a chemical species that donates electrons, accepts protons, or releases hydroxide (OH-) ions in aqueous solution. Bases display certain characteristic properties that can be used to help identify them.
6) An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition).
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