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Question 1
Question
There are many advantages of the limestone industry. Select all of them.
Answer
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Limestone is a valuable natural resource, used to make things such as glass and concrete.
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Limestone quarrying provides employment opportunities that support the local economy in towns around the quarry.
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Limestone quarries are visible from long distances and may permanently disfigure the local environment.
Question 2
Question
There are some disadvantages of the limestone industry. Select all of them.
Answer
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Limestone quarries are visible from long distances and may permanently disfigure the local environment.
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Limestone is a valuable natural resource, used to make things such as glass and concrete.
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Quarrying is a heavy industry that creates noise and heavy traffic, which damages people's quality of life.
Question 3
Question
The result of a test for carbon dioxide is:
Answer
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A glowing splint relights
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Limewater turns cloudy
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A lit splint 'pops'
Question 4
Question
Calcium hydroxide reacts with carbon dioxide to produce:
Answer
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Calcium carbonate
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Calcium oxide
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Calcium carbide
Question 5
Question
The balanced symbol equation for the thermal decomposition of copper carbonate is:
Answer
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CuCO3 → CuO + CO2
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CuCO3 → CuO + C + O2
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CuO + CO2 → CuCO3
Question 6
Question
How do you produce calcium oxide from calcium carbonate?
Answer
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By heating it
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By adding water to it
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By removing excess acidity
Question 7
Question
Limestone is made mostly of?
Answer
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Calcium oxide
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Calcium carbonate
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Calcium hydroxide
Question 8
Question
Limestone is made mostly of?
Answer
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Calcium oxide
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Calcium carbonate
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Calcium hydroxide
Question 9
Question
Water is one of the ingredients of concrete. What are the other ingredients?
Answer
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Clay, sand and crushed rock
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Soda, sand and crushed rock
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Cement, sand and crushed rock
Question 10
Question
Water is one of the ingredients of concrete. What are the other ingredients?
Answer
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Clay, sand and crushed rock
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Soda, sand and crushed rock
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Cement, sand and crushed rock
Question 11
Question
Water is one of the ingredients of concrete. What are the other ingredients?
Answer
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Clay, sand and crushed rock
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Soda, sand and crushed rock
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Cement, sand and crushed rock
Question 12
Question
What is an advantage of making a foundation from concrete?
Answer
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It is strong when squashed
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It is strong when stretched
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It is dissolved by acid rain
Question 13
Question
What is a benefit of a limestone quarry?
Answer
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It is loud and noisy
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It produces a lot of dust
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It brings employment for local people
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