It practically means that the air in the city has less than a third of water vapor it could contain under the same circumstances.
Relative humidity is the ratio of water vapor that the air contains to the maximum amount it could carry at the same temperature.
When the humidity is high, the water vapor in the air is a variety more, and vice versa.
Fungi are eukaryotic and saprophytic microorganisms that grow on dead and decaying matter. These organisms release digestive enzymes that break down leaves, fruit and other organic material into simple molecules. These can grow on wood, clothes, food, fruits, leather shoes, etc by breaking down complex organic matter into simpler forms with the help of extracellular digestive enzymes such as cellulases, proteases, phosphatases, etc.
Marine organisms at higher trophic levels will have higher concentrations than animals in lower trophic levels. This is because mercury is not easily eliminated from these organisms so the concentration can increase as you go up the food chain. For example, one fish eats five shrimp each with one molecule of mercury, the fish now contains five molecules. If a larger fish eats several fish with five molecules of mercury then the concentration increases through the trophic levels.
Answer: Decomposition is a process in which complex organic molecules are converted into simple inorganic forms, which can be easily degraded.
Explanation:
The watermelon is a food source for decomposers. The soft fleshy part get decomposed and degraded easily but the hard thicker rind takes long. The soil decomposers like bacteria, earthworms and fungi will convert the organic matter in the watermelon into inorganic components. This way the matter is converted into a form which can be utilized by the decomposers as a source of energy and some components also improves the quality of soil.