Question

(5x
.6 Long Answer type question: (Any two)
(a) Discuss the advantages and disadvantages of natural fabrics.
(b) What is merasmus? What are the symptoms of marasmus?
(c) Distinguish between-
(a) Herbivorous and carnivorous (b) Scavengers and decomposers.​

Answer 1

(a)  Fibres obtained from natural sources like plants and animals are called as Natural Fibres .

Examples are Cotton, silk ,Jute, wool etc.

Advantages of Natural Fibres:-

-->They are made up of natural sources like plants and animals

.---> Fire resistant.

--->On burning the natural fibres we don't get poisonous gases.

--->Easily affordable

.---> Absorbs  sweat and water hence these types of clothes are preferred to wear in summer.

Disadvantages Of natural Fibres :

---> Are not very strong compared to synthetic fibres.

----> Natural Fibres are heavy in weight .

---> Natural fibres can be damaged by moths.

---> Not wrinkle free

--->They are not durable.

(b) Marasmus is a severe form of protein-energy malnutrition that results when a person does not consume enough protein and calories. Without these vital nutrients, energy levels become dangerously low and vital functions begin to stop.

Both adults and children can have marasmus, but it most often affects young children in developing countries.

UNICEF estimate that nearly half of all deaths in children under the age of 5 years, or around 3 million each year, resulting from a lack of nutrition.

Causes and risk factors

Causes of marasmus include:

not having enough nutrition or having too little food

consuming the wrong nutrients or too much of one and not enough of another

having a health condition that makes it difficult to absorb or process nutrients correctly

Older adults who live alone and find it difficult to prepare food and care for themselves may be at risk. Sometimes marasmus can affect an older adult who has not eaten healthfully over a period of some months or years, say the University of Kansas Landon Center on Aging.

While consuming the wrong nutrients and having a health condition can contribute to marasmus, each of these alone would probably not be enough to cause it, as long as calories are available.

In places where food can be scarce, breastfeeding infants for as long as possible may help reduce the risk of malnutrition.

However, if breastfeeding continues for longer than 6 months without an infant receiving solid food, the risk of marasmus can also increase, especially if the mother is malnourished herself.

Those born preterm or with low birth weight may also have a predisposition to malnutrition afterward.

Appropriate support and nutrition during pregnancy and in a child’s early years are essential for preventing malnutrition.

Answer 2

Answer:

I hope it's helpful for you