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Answer:
2) The fibers which we get from nature is called natural fiber. 2 examples are cotton, jute etc.
3) Grouping of materials is called classification. It helps us to separate things of different categories and different sizes, shapes etc.
4) Sources of protein are Soyabean, Pulses, Gram seeds etc..
5) Animals are of 3 types on basis of their food habits..
Omnivores - Bear, crow
Carnivores - Lion, tiger
Herbivores - Goat, cow
6) Vitamin C helps to build our immunity. Keep our bones, teeth and gums healthy. Sources of vitamin-C are Amla , Guava, Tomato and citrus fruits etc..
Explanation:
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Explanation:
2. Natural fibers are fibers that are produced by plants, animals, and geological processes. They can be used as a component of composite materials, where the orientation of fibers impacts the properties.Natural fibers can also be matted into sheets to make paper or felt.
Natural fibers are good sweat absorbents and can be found in a variety of textures. Cotton fibers made from the cotton plant, for example, produce fabrics that are light in weight, soft in texture, and which can be made in various sizes and colors.
3.Advantages of Sorting Material
Disposal: For proper disposal of objects, it is important to sort them into groups of biodegradable and non biodegradable substances. For degradable substances, dry waste and wet waste should also be separated to ensure longer decay time during the transit period. For nondegradable substances, the objects should be sorted into recyclable and nonrecyclable substances, so as to reduce wastage of material.
Storage: In order to allocate suitable containers for storage of objects, it is necessary to sort objects into solid, liquid and gases. For example, vegetables can be carried in cloth bags, but milk and oil cannot. Liquids such as oil and milk can be stored in open mouth containers such as a glass tumbler, but gases such as nitrogen and oxygen cannot be stored as such.
Manufacturing: The material of an object can be identified depending upon its property. For example, if we want to manufacture bottles to store liquids, we use materials such as a glass, plastic or metal but cannot use cloth or leaves, as they will not retain the liquid. Similarly, while manufacturing cricket bat, we can use wood or plastic, but cannot use glass.
4. Most animal sources of protein, such as meat, poultry, fish, eggs, and dairy, deliver all the amino acids your body needs, while plant-based protein sources such as grains, beans, vegetables, and nuts often lack one or more of the essential amino acids.
5. They are categorised into
# carnivores: carnivore meaning ‘meat eater’ (Latin, carne meaning ‘flesh’ and vorare meaning ‘to devour’) is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue. example: tiger.
# herbivores: these animals eat only green leaves and plants. example: cow.
#omnivores: these are the animals that eat both plants and animals. example: monkey.
# scavengers: these animals eat the remains of dead animals. example: vulture.
6. Dietary sources of vitamin C include many fruits and vegetables. Sources with the most vitamin C are fresh, raw cantaloupes, citrus fruits, kiwis, mangos, papayas, pineapples, strawberries, raspberries, blueberries, watermelon and cranberries. Red and green peppers, spinach, cabbage, cauliflower, turnip greens and other leafy greens, tomatoes, potatoes, broccoli, winter squash and Brussels sprouts are other good sources of vitamin C.
The body uses vitamin C in many different ways. Vitamin C is needed by the body to form collagen. According to the NIH, the body also uses vitamin C to make skin, tendons, ligaments and blood vessels. It also uses this vitamin to repair and maintain cartilage, bones and teeth, to heal wounds and to form scar tissue.
Vitamin C may also prevent cancer by blocking the damage made by free radicals. “Vitamin C is a vital antioxidant that helps protect cells from damage caused by free radicals that we are exposed to in the environment such as air pollution, cigarette smoke and ultraviolet light from the sun.