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