Fertilisers can be natural, such as manure or phosphates, or artificial, such as commercially available chemicals.
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5 · en
5 sentences with “chemicals”
Short, simple sentences with “chemicals”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
Brief definition: chemicals
Substances made from elements or compounds that can be natural or man-made, often used in science, industry, or daily life for various purposes.
5 sentences with “chemicals” — examples
A secretion is the production and release of chemicals by a cell, gland or organ, such as sweat or sebaceous secretions.
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Chemotherapy is a special treatment of diseases that involves the administration of chemicals that act on infectious agents without damaging organ tissues.
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The nose sieve: Nasal mucus is the first defence against the millions of bacteria that are constantly trying to invade our body. Those that survive the action of the powerful chemicals in this mucus are expelled or pass into the stomach, where gastric juices kill them off.
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Researchers at the University of Birmingham, England, have shown that Parkinsonians are deficient in the liver enzymes that normally detoxify these chemicals. The resulting accumulation of cysteine and thiol, two neurotoxic compounds, can lead to various brain conditions. Other research suggests that a cellular abnormality may be the cause of the patient's inability to override the effect of the neurotoxicants.
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