Question

Match the following pairs and choose

List I	list II
I) spinach	a) Roughage
ii) milk	b) Iodine
iii) salt	c) Iron
iv) whole-grain	d) Calcium

(a) I-d, ii-a, iii-c, iv-d
(b) I-d, ii-c, iii-a, i-b
(c) I-c, ii-a, iii-d, iv-b
(d) i.c, ii-d, iii-b,iv-a

Answer 1

The part of plant-derived food that cannot be fully broken down by human digestive enzymes is dietary fibre (British spelling fibre) or roughage. Non-starch polysaccharides and other plant components such as cellulose, resistant starch, resistant dextrins, inulin, lignins, fungal chitins, pectins, beta-glucans, and oligosaccharides are composed of dietary fibre.

Complete answer:
(i) Spinach-(c) iron- Spinach is a vegetable which is highly nutrient-rich. It is a rich source of vitamin A, vitamin C, magnesium, manganese, iron, and vitamin K. Spinach contains an inhibitory substance for iron absorption, oxalate, which can bind to iron to form ferrous oxalate.
(ii) Milk-(d) calcium - The sources of calcium are milk and other dairy products. Calcium is a mineral required by the body for many functions, including the construction and maintenance of bones and teeth, blood clotting, the transmission of nerve impulses, and the control of the rhythm of the heart.
(iii) Salt-(b) iodine- A minute amount of the element iodine is found in table salt. The ingestion of iodine in the form of iodised salt avoids iodine deficiency. Thyroid gland issues can be caused by this deficiency,
The component of plant-based foods (grains, fruits, vegetables, nuts, and beans) that the body cannot break down is
(iv) whole grain-(a) Roughage-Fibre, also known as roughage.

Additional information:
Milk is a liquid food rich in nutrients produced in the mammary glands of mammals. Before they are able to digest other food types, it is the main source of nutrition for baby mammals (including humans who are breastfed). There is colostrum in early lactation milk, which brings the antibodies of the mother to her young and can reduce the risk of several diseases.
It's easy to understand how the myth of spinach is a good source of iron, even without any decimal point errors. The iron content of spinach actually trumps that of many other vegetables. It clocks in at around 2.6 milligrammes (according to the USDA food composition database) of iron per 100 grammes.
In certain foods, iodine is present naturally and is often added to salt branded as "iodized." By eating a variety of foods, including the following: fish (such as cod and tuna), seaweed, shrimp, and other seafood usually rich in iodine, you can get the recommended quantities of iodine.

So, the correct option is ' i-c, ii-d, iii-b.iv-a'.

Note:
Salt is a mineral consisting predominantly of sodium chloride, a chemical compound belonging to the broader salt class; salt is referred to as rock salt or halite in its natural form as a crystalline mineral. In seawater, where it is the main mineral constituent, salt is present in large amounts.