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Unit 3 Promise For The Future Renewable Energy

Question A.10:

Below is a flow chart describing the process of making rubber. Use it to help you copy and complete the process description that follows it. Remember to use the simple present tense, a mixture of actives and passives, and to add sequence markers where you see*

Plant rubber trees

Make cuts in the bark and attach containers.

Collect latex in the containers

Send latex to the factory

Coagulate latex with acetic acid.

Separate the coagulated mass

Press it into blocks or roll it into sheets

Dry the blocks or sheets in a current of warm air

First rubber trees …….. in deep soil.*. When the trees …, fully ….., the bark of the tree …. and containers …. The latex …….. and is ……. to the factory. Here it ….. by treating it with acetic acid* the coagulated mass ….. It is then ….. into blocks or ….. into sheets. * …. in a current of warm air. Check: What tense did you use? Did you use sequence markers? Did you use a mixture of actives and passives?

Answer:

Plant rubber trees

Make cuts in the bark and attach containers.

Collect latex in the containers

Send latex to the factory

Coagulate latex with acetic acid.

Sepa…

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