Questions

Vulcanization of rubber is a process of improvement of the rubber elasticity and strength by heating it in the presence of sulfur rubber much stronger, more flexible, and more resistant to heat and other environmental conditions.

Eukaryotic cells are found in plants, animals and unicellular organisms.

The three main part of Eukaryotic cells are

1. Plasma membrane or membrane-bound organelles which carries out the cell functions.

2. Nucleus which contains the cell's DNA (and)

3. Cytoplasm which is a jelly like fluid interior of the cell.

Chung hua

The buying and selling of goods is called Trade. Trade is a part of business where goods and services are exchanged for mney and mainly to earn profit. Commerce is used to describe trade and all the other business activities and services which make trade possible like banking, insurance, transport and advertising.