Jawaban:

general structure :

1. general classification = tells what the phenomenon under disscusion is

2. description = tells what the phenomenon under disscusion is like in items of : behaviour, quantities, qualities, physical feature, food, habitat, habits

general classification of the text is :

Wood is a natural material

description of the text are :

Different trees produce different kinds of wood. Some woods, such as oak, are very hard. Others, such as blasa, are very soft. Most woods are light enough to float but some, such as ebony, sink. Wood has a distinctive smell. When you hit it with a hammer, it has a distinctive sound. Some woods, such as ebony, are so hard that it is almost impossible to saw or knock a nail into them. Balsa wood is so soft you can easily break it with your fingers. Different woods are chosen to make different types of furniture, depending on how strong the furniture needs to be.