Questions

Guglielmo Marconi, an Italian invetor invented Radio in 1890's.

In DNA, adenine pairs with Thymine. Similarly, in RNA, due to absence of thymine in RNA and the same structure with uracil helps to pair with adenine.

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. 

Code, Data, Stack, Extra Segment registers in 8086.

Sicily

Oxygen released during photosynthesis comes from splitting of water.

Acceleration is nothing but the rate at which velocity changes over time.