The diagram shows the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The two diagrams illustrate the way in which

cement

Use synonyms

is made and

then

Linking Words

used for construction.

Overall

Linking Words

, limestone and clay go through several steps before

bagged

Add a missing verb

being bagged

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but only 15% of

cement

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,

accordingly

Linking Words

, is used for producing concrete. In the first diagram, limestone and clay are crushed into a smooth powder. After the power goes through a mixer, it is led through a tube into a rotating heater. The mixture,

hence

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, is heated by a fierce fire. After melting, the mixture is ground into

cement

Use synonyms

and

thus

Linking Words

being

Unnecessary verb

apply

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packaged before being transported to building

constructions

Fix the agreement mistake

construction

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. In the process of producing concrete, it is indicated that concrete consists of a huge amount of gravel (50%), which are small stones. Other ingredients are sand,

cement

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and water, which is 25%, 15% and 10% respectively. These ingredients are all poured into a rotating machine

in

Change preposition

apply

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which produces concrete mixers for building purposes. In conclusion,

although

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the process of

cement

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-making undergoes many steps, the way of producing concrete is less complicated.

While

Linking Words

complex equipment is used to produce

cement

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, concrete-making needs fewer tools.