The mode of nutrition in green plants isautotrophic nutrition.

Ingredients of Food: Materials needed to prepare any food item are called ingredients. Two or more than two ingredients are needed to prepare a dish. Example: To prepare boiled rice, rice and water are used, so rice and water are the ingredients for boiled rice. Vegetables, salt, water and spices are used in cooking vegetable curry, so vegetables, salt, water and spices are ingredients of vegetable curry.

All living things need energy to do work and for growth and repair. They get this energy from the food. Our body uses this energy for doing work. We eat different varieties of food like rice, bread, vegetables, eggs, butter, sweets, cheese, etc.

The inability of the body to completely separate supplements from nourishment is known as malabsorption. This may happen because of a lack or interference of the digestive enzymes.
Side effects of malabsorption incorporate looseness of the bowels, weight reduction and awkwardly extensive and smelly stools. Doctors test for conceivable malabsorption by looking at stools for fat. At times, a biopsy of the small digestive intestine is fundamental.

Everyone around us does not get enough food to eat because:
1. Everywhere population, poverty and unemployment.
2. We take enough food than we eat end refuse to give who have none.
3. The more we take the less others get and it leaves people hungry and divested.

Animals  including humans do not make their food. They eat foods prepared by plants.
Some animals eat only grass and plant products are called herbivores.
Some animals eat flesh of other animals are called carnivores.
Some animals eat both plants and meat are called omnivores.
Some animals eat flesh of dead animals are called Scavengers.

Recycling of Paper:

Recycling of paper is done by the following method:

1. Take some old newspapers, magazines, used envelopes and notebooks or any other waste paper and tear them into small pieces and put them in a tub.
2. Put some water into the tub so that the pieces of paper remain submerged in water for a day.
3. Make a thick paste of paper by pounding it.
4. Take a fine wire mesh fixed to a frame and spread the thick paste of paper on it.
5. Pat it gently to obtain a uniformly thick layer of paper paste. Wait till all the water from paste drains off.
6. A sheet of old cloth or a newspaper can be used to soak up extra water present in the layer of paper paste.
7. Remove the layer of paper paste from the wire mesh carefully and spread it on a sheet of newspaper kept in the sunshine to remove all the water left in the layer of paper paste and make it completely dry.
8. This dried and thin layer of paper paste is the recycled paper.

Oscillatory motion is motion that is repetitive and that which cycles about a mean position. We can also call this periodic motion.
Examples of oscillatory motion: Oscillatory motion or periodic motion is seen in pendulums, vibrating strings, and elastic materials such as a spring. Physical phenomena such as light, sound, ocean waves, and molecular vibrations also exhibit oscillatory motion.

When a new substance is formed after the change, it is called chemical change. Chemical changes cannot be reversed by simple physical means. Many chemical changes are irreversible. Examples: Burning of candle, rusting of iron, charcoal burns, molecules of oxygen from the air bond with the carbon in the coal etc.

When a new substance is formed after the change, it is called chemical change. Chemical changes cannot be reversed by simple physical means. Many chemical changes are irreversible. Examples: Burning of candle, rusting of iron, charcoal burns, molecules of oxygen from the air bond with the carbon in the coal etc.
103) Plants do need food for their survival and they would not wait or depend on others to provide them food. There is a particular mechanism in plants with which they prepare their food. This mechanism is known as Photosynthesis. Photosynthesis is a biological process used by plants to prepare their food with the help of sunlight and energy.
The overall reaction of photosynthesis process is:
6CO₂ +  6H₂O  → C₆H₁₂O₆  + 6O₂
6 molecules of Carbon dioxide + 6 molecules of  Water produce 1 molecule of   Glucose + 6 molecules of Oxygen

All living things need energy to do work and for growth and repair. They get this energy from the food. Our body uses this energy for doing work. We eat different varieties of food like rice, bread, vegetables, eggs, butter, sweets, cheese, etc. Materials needed to prepare any food item are called ingredients. Two or more than two ingredients are needed to prepare a dish.

Garbage contains two types of materials, viz. biodegradable and non-biodegradable. Substances which rot and get decomposed by microbes are called biodegradable substance. Wastes from organic origin are biodegradable in nature. Biodegradable substances can be turned into compost.
Farmers often make compost from farm waste leaves and stalks and animal dung. For this, a compost pit is dug in the ground. The waste is dumped in the compost pit and then covered with soil. After about two months, everything decomposes and appears like soil. This is compost. Compost is very good manure and helps in increasing soil fertility.

Honey is an animal product obtained from honey bees. Bees collect nectar from the flowers of plants and convert it into honey. The bees store honey in the structures called hives. The hives containing honey are called honeycombs.

Food is essential for all the living organisms. Plants prepare their own food and store in their special organs as fruits, tubers, seeds etc. Food comprises of ingredients. An ingredient is a part of mixture that is added to prepare a dish. Ingredients vary with different types of food. Ingredients can be obtained from plant sources and animal sources. Ingredients of food obtained from plants could be all vegetables, cereals, pulses, spices, nuts, oils and fruits.