Which type of personal hygiene is most important for preventing the spread of communicable diseases?
Hand hygiene
Communicable diseases often spread when pathogens on the hands come into contact with the mouth, nose, eyes, or food.
Keeping hands clean by regular washing removes germs before they can be transferred to the body or to other people and surfaces, which is why hand hygiene is emphasised so strongly in public health.
Hair, foot, and ear hygiene matter for personal cleanliness but play a much smaller role in interrupting the chain of infection compared with clean hands.
In the nitrogen cycle, which bacterial genus carries out the first step of nitrification by oxidizing ammonia (\(NH_3\)) to nitrite (\(NO_2^-\)) ?
Pollination in flowering plants is defined as the transfer of pollen grains from :
Which term describes the introduction or presence of a physical, chemical, or microbiological agent in food at any stage before, during, or after processing, rendering it unsafe or unsuitable for consumption?
Which term refers to the capacity of a substance to produce any kind of harm or injury to a living organism ?
Leghaemoglobin found in the root nodules of leguminous plants primarily functions to:
During anaerobic respiration (alcoholic fermentation) in yeast, glucose is converted into:
Cooling the affected area with cool running water for at least 20 minutes is the standard primary treatment for ____.
In horticulture, how do shrubs differ from trees?
Creepers are plants that spread horizontally along the ground. What helps creepers anchor themselves to the soil as they spread?
According to sports nutrition guidelines, carbohydrates primarily help athletes by ____.
Which of the following is used as a bio - indicator of air pollution?
Which of the following occurs when an organism absorbs the chemicals at a faster rate then the metabolic capacity of their body?
Which of the following is a primary producer in a food chain?
Aphim, Morphin, Heroin, Methodine are the examples of:
Due to which change in environment that Rekha's mother told Rekha not to sleep below the tree ?