Questions

Epithelial tissue is made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities, and form glands.

The four types of tissue in the body are epithelial, connective, muscle, and nervous. 

Crop Rotation is the practice of growing a series of dissimilar or different types of crops in the same area in sequenced seasons. It is done so that the soil of farms is not used for only one set of nutrients. It helps in reducing soil erosion and increases soil fertility and crop yield. The British agriculturist Charles Townshend (1674–1738) popularised this revolutionary technique in the 18th century.

The short and swift streams running down the Scandinavian mountains have been harnessed for power which also compensates for the absence of coal and oil.

Sufi silsilas began to crystallise in different parts of the Islamic world around the twelfth century. The word silsila literally means a chain, signifying a continuouslink between master and disciple, stretching as an unbroken spiritual genealogy to the Prophet Muhammad. It was through this channel that spiritual power and blessings were transmitted to devotees. Special rituals of initiation were developed in which initiates took an oath of allegiance, wore a patched garment, and shaved their hair. Thus, all statements are correct.

The soil is formed by breaking down of large rock surfaces into pieces due to water, wind and all atmospheric changes by mixing with plants and animal decays. This process is called as weathering.