State true or false based on cement- properties and uses — task. Science State Board, Class 6.

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State true or false:

1. The burning zone starts after the calcining zone, where the temperature is about \( 1350^°\ C\) to \( 1450^°\ C\).*

2. Aluminium oxide is also known as lime.

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3. State true or false based on cement- properties and uses