Saprotrophs  are the living entities that derive their nutrition from the dead and decaying organic matter. Saprothrophs do not require a host. As they derive nutrition from dead matter, they are often termed as cleaning agents. Fungi and a few other bacteria are good examples of saprotrophs

The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO₂) and water (H₂O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.

Gandhi arrived in Champaran 10 April 1917 and stay on the house of Sant raut in Amolwa village with a team of eminent lawyers: Brajkishore Prasad, Rajendra Prasad, Anugrah Narayan Sinha Ramnavmi Prasad, and others include J. B. Kripalani. Gandhiji reached Champaran in 1917 with Raj Kumar Shukla.

The normal line divides the angle between the incident ray and the reflected ray into two equal angles. The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

The business class in India initially supported the Civil Disobedience Movement. This was because the industrialists and merchants in India had become rich during the First World War. They were keen on expanding their businesses and wanted protection against foreign industries. Many eminent industrialists such as Purshottamdas Thakurdas and G. D. Birla criticised the colonial government for its control over the Indian economy which prevented their growth. They provided financial assistance during the movement, and refused to buy and sell imported goods. Many industrialists began to see swaraj as a time when colonial restrictions on business will end. However, towards the end, they became apprehensive of the growing influence of socialism among the younger members of the Congress. 

A human digestive system is a group of organs working together to convert food into energy and basic nutrients to feed the entire body. The food we take in is digested and utilized by our body and the unused parts of the food are defecated. Human digestive system is the sum of the gastrointestinal tract (GIT; also called alimentary canal) and accessory organs (tongue, liver, pancreas, etc). These two parts together help in digestion in humans.

The alimentary canal is the long tube through which the food that we eat is passed. It begins at the mouth (buccal or oral cavity), passes through the pharynx, esophagus or food pipe, stomach, small intestines, large intestines, rectum and finally ends at the ****. The food particles get digested gradually as they travel through various compartments of the alimentary canal. Accessory organs are organs which participate in the digestion process but are not actually a part of GIT. They stimulate the digestion by releasing certain enzymes.

Food begins its journey through the digestive system in the mouth, also known as the buccal cavity or the oral cavity. The mouth has many accessory organs such as the tongue, teeth, and salivary glands, which help in the digestion of food. Teeth grind the food into small pieces. Salivary glands secrete saliva which contains an enzyme called the salivary amylase. This enzyme breaks down starch content and moistens the food, before the tongue and other muscles push the food into the pharynx.

 Pharynx: The pharynx passes the chewed food from the mouth to the esophagus. The flap of tissue known as the epiglottis present in pharynx prevents food from entering into the wide pipe

Esophagus or Food Pipe: The esophagus is a muscular tube connecting the pharynx to the stomach. It carries swallowed masses of chewed food along its length and pushes it down to the stomach.

 Stomach: The stomach is a thick-walled muscular bag that is located on the left side of the abdominal cavity. It is the largest part of the human digestive system. Stomach acts as a storage tank for food so that the body has time to digest large meals properly. It receives food from the food pipe at one end and opens into the small intestine at the other end. The inner walls of the stomach consist of the gastric glands which secrete mucous, hydrochloric acid and digestive enzymes. These continue the digestion of food that began in the mouth.

Mucous protects the lining of the stomach while acid kills bacteria that enter the body along with the food. Hydrochloric acid also makes the medium in the stomach acidic, which helps the digestive enzymes like pepsin to act. The digestive enzymes break down proteins into simpler substances.

Small Intestine: The small intestine is the longest part of the human digestive system. It is a highly coiled long, thin tube which is about 7.5 metres in length. The length of the small intestine depends on the diet of the organism. A major proportion of digestion takes place in the small intestines. All types of nutrients are digested here with the help of secretions which it receives from the liver and the pancreas. The walls of the small intestine also secrete juices for digesting food.

The liver releases bile juice which alkalizes the acidic food received from the stomach and also emulsifies the fat content. The pancreatic juice digests the proteins and lipids. Finally, the intestinal secretions convert the carbohydrates into glucose, proteins to amino acids and fats into fatty acids and glycerol.

Once the food is broken down into the simple particles, it is ready to be absorbed by the body. The villi, finger-like projections present on the walls of the small intestine, absorb the digested food by increasing the surface area. The absorbed food is then transported to different parts of the body through the blood vessels for cell activities.

Large Intestine: The large intestine is a long, thick tube which is about 1.5 meters long. The large intestine absorbs water and small amounts of nutrients from the undigested food with the help of many symbiotic bacteria residing in it. The remaining waste passes into the rectum, where it remains as semi-solid feces. Feces exit the body through the **** via time-to-time excretion. This process is called Digestion.

Limitation of Ohm's Law
This law cannot be applied to unilateral networks. A unilateral network has unilateral elements like diode, transistors, etc., which do not have same voltage current relation for both directions of current. Ohm's law is also not applicable for non – linear elements.

Muhammad Ali Jinnah became disillusioned with politics after the failure of his attempt to form a Hindu-Muslim alliance, and he spent most of the 1920s in Britain. The leadership of the League was taken over by Sir Muhammad Iqbal, who in 1930 first put forward the demand for a separate Muslim state in India.

Static electricity is caused by the build up of electrical charges on the surface of objects, while current electricity is a phenomenon from the flow of electrons along a conductor. When objects are rubbed, a loss and/or gain of electrons occurs, which results in the phenomenon of static electricity.

Rules are established to protect the weaker class in the society since they are at a disadvantage if such regulations are broken. When rules are properly set and followed, they provide a stable environment and human co-existence in a community, resulting in peace and order.