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Question
Consider the following distinguishing charac-teristics of hardwood :
1. They have distinct annular rings.
2. They are not resinous.
Which of these characteristics of hardwood is/ are correct?
A.
1 only
B.
2 only
C.
Both 1 and 2
D.
Neither 1 nor 2
Answer ( Option B)

2 only

Solution

Characteristics

Softwood

Hardwood

Source

Softwood is collected from conifer trees which are evergreen having needle-shaped leaves. these are generally gymnosperms. Hardwood is obtained from deciduous trees (lose leaves in autumn). They are basically angiosperms.

Fibre

Less dense, strait fiber is found.

In the case of hardwood, the fibers are quite close and dense.

Resin quality

It is resinous wood that contains good and regular texture and a fragrant smell.

Non-resinous woods have enough acid.

Weight

Lightweight and softer than hardwood.

Heavyweight and harder than softwood.

Color

Softwood is light in color.

Normally these are dark-colored woods.

Resistance to fire

poorer than hardwood, and burn at a high rate.

better than softwood. Burn at a very slow rate.

Weather resistance

If they are modified or treated then these may become resistant to weathering having an environmental impact.

Naturally resistant to weathering having environmental impact. a less

Duration

Less durable wood.

Hardwoods are highly durable and last for several decades.

Ring structure

Distinct annual rings are found.

The annual rings are not distinct.

Medullary rays

Indistinct medullary rays.

Distinct medullary rays.

Growth rate

Soft wood trees grow faster than hardwood trees.

The growth rate of this type of tree is slower.

Wood branching

Creates more branches or shoots.

Have fewer shoots.

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