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pollutant gases such as nitrogen monoxide and nitrogen dioxide. They are produced during combustion, especially at high temperatures. They are harmful to human health. They can react with water to make nitric acid, which may end up in the soil, where it makes nitrates, which is of use to growing plants.
inter-connecting strands of cytoplasm that connect the cytoplasm of adjacent plant cells across...
small structures found in the jaw that are used for biting and chewing food.
the inner most layer of the cortex of roots and some stems of plants.