The diagram below shows the development of cutting tools in the Stone Age. Summarise the information by selecting and reporting the main features and make comparisons where relevant.

The given diagram illustrates the improvement of cutting tools in the

Stone

Age.

Overall

, the given diagram witnessed significant changes

about

Change preposition

in

show examples

tools' views

except

Add the preposition

except for

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their heights in 6 million

years

. Begin with

Tool

A,

this

have

Change the verb form

has

show examples

3 views of

stone

which were used

Change preposition

for cutting

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cutting

Change preposition

for cutting

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purposes

Change preposition

apply

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in

Change preposition

apply

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1.4 million

years

ago. The

tool

was 5 cm

height

Change preposition

in height

show examples

and

have

Wrong verb form

had

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copped

Correct article usage

a copped

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shape

. In terms of

Tool

B,

this

have

Unnecessary verb

apply

show examples

also

3 views about

stone

and

this

cutting

stone

noticeably dramatically changed and reached more architectural illustration. In

view

of

front

Correct article usage

the front

show examples

,

Tool

A

getting

Wrong verb form

got

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bigger and

getting

Wrong verb form

got

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a diamond

shape

over the given 6 million

years

.

Tool

B, in

side

Correct article usage

the side

show examples

view

,

getting

Wrong verb form

gets

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thicker and sharper in the given time period. In terms of

back

Correct article usage

the back

show examples

view

,

Tool

A

were

Unnecessary verb

apply

show examples

resembled of triangle

shape

and changed in

years

and

finally

reach

Wrong verb form

reached

show examples

and diamond

shape

like its front

view

.

Tool

A's

Change noun form

A

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and

Tool

B's

Change noun form

B

show examples

which

used

Add a missing verb

are used

show examples

for cutting aims, have

same

Correct article usage

the same

show examples

heights in the given time periods, at 5 cm for both.