<h2>Answer is option "b"</h2>
Explanation:
- Non-ionizing radiation is radiation that has a lower frequency, or longer wavelength, in the EMR spectrum. These frequencies range from that of power lines, radios, and cell phones, up to visible light. Non-ionizing radiation is not powerful enough to break the chemical bonds in molecules. In general, it is not harmful to human health as radiation per se, but could be harmful in terms of the transfer of heat energy. An example of an emitter of non-ionizing radiation is a microwave oven.
- Non-ionizing radiation is less harmful because the rays carry much less energy. Radio waves, light, and even heat are examples of non-ionizing radiation. For the most part, these kinds of radiation do not cause any damage. However, ultraviolet light is a kind of non-ionizing radiation that can be harmful - it can cause mutations in DNA
- Non-ionizing radiation is limited to the lower energy range electromagnetic radiation, which is more commonly known as light. However, the light we can see with our eyes, visible light, is only a small section of the electromagnetic radiation spectrum as seen here
- Hence the right answer is option "b"
The body needs calcium and phosphorous because phosphorus works with calcium to help build bones
Answer:
TEF-thermic effect of food
Explanation:
The thermic effect of food is the energy needed for digestion, absorption, and removal of ingested nutrients. Its magnitude relies on the components of the food consumed: Carbohydrates has 5 to 15% of the energy ingested while Protein 20 to 35% of the energy ingested.
The thermic effect of food can be determined by multiplying the total calories derived from food by 10%. For example, a 2000 calories diet a day will consume approximately 200 calories in digesting the food.
