Questions

Plant cell walls are mostly made up of the molecule cellulose. Cellulose is a polysaccharide, a complex sugar made of long chains of glucose.

The cell wall must be made of thick and strong material as it provides the structural shape of the plant and protection from insects and microorganisms.

Karst topography is created by the chemical weathering of the rocks such as limestone, dolomite etc...

A devastating  series of earthquakes in 1906 ruined the city completely and its presence is a constant remainder of the past and a threat of repetition in future.

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A tenant farmer is one who resides on land owned by a landlord. These farmers would have to share the yield with the landowner in a process known as sharecropping. In the South, these farmers need to have their own tools and animals.