Answer:
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D. oxidation-reduction reaction
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Explanation:
1. Oxidation-reduction reaction: An oxidation-reduction reaction (also known simply as redox reaction) is one of the type of chemical reaction, it involves a transfer of electrons between two species.
2. In plants light is absorbed by chlorophyll which causes transfer of electron from water, and the final acceptor of electron is oxygen.
3.Plants takes carbohydrates from environment and water from earth, and with the help of sun-light they make carbohydrates and oxygen, so they are called autotrophs.
Answer:
Photosynthetic organisms
Explanation:
Those are capable of converting inorganic compounds like carbon dioxide into organic compounds like glucose via photosynthesis, in their chlorophyll, in the presence of sunlight energy.
Chemosynthetic bacteria are also autotrophs but they use chemical reactions, including other inorganic compounds to gain ther energy.
And lastly, all organisms release carbon dioxide as a result of respiration. They don't take it in.
Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to degradation of aquatic ecosystems.
The correct answer would be leaf blade or lamina. The broad, flattened portion of a leaf is called the blade. This is the largest and most conspicuous part of the leaf. This is also where photosynthesis occurs because it has many green food-making cells which absorbs sunlight.