About the rock
weathering
karst landscape
100
What type of rock is limestone?
What is a sedimentary rock?
100
What specific type of chemical weathering is limestone susceptible to?
What is Carbonation?
100
The wide area of limestone shown in the image is an example of what limestone feature?
What is a limestone pavement?
200
Give 3 importance of limestone?
What are construction industry, medicine, food, agriculture, fresh water supply etc?
200
Is Calcium Carbonate soluble?
What is NO?
200
What limestone feature is displayed in the image?
What are tower Karst?
300
What is limestone rock?
What is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite. The purity of limestone depends on the percentage of calcium carbonate, which can range from 50% to over 90%.
300
Explain the process of Carbonation
What is rain dissolving carbon dioxide forming a mild carbonic acid solution that reacts with calcium carbonate to produce calcium bicarbonate?
300
Stalactites stalagmites pillars are examples of this classification of limestone formed features.
What are dripstone features?
400
Explained what is meant by most limestones are pervious.
What is cracks and vertical fissures with bedding planes? Allowing water to past through and be stored.
400
What is the chemical equation of Carbonation?
400
Explain how limestone caves are formed.
What is water seeps through the cracks and bedding planes of limestone and reacts with the Calcium Carbonate resulting in the calcium bicarbonate that erodes. This leaves a cavity or hollow opening producing a cave. This continues to widen with more erosion.
500
Explain four characteristics of limestone.
What is chemical composition.......(explain), texture.....(explain), hardness....(explain), physical structure....(explain)?
500
What are two evidence on a map an area comprises of limestone?
-Depressions – as indicated by short hash marks inside circles
-Disappearing streams
-Springs at the foot of steep escarpments and place names that begin with ‘spring’ such as ‘Springvale’.
-Features and symbols that represent quarries and cement-making, since limestone is an important ingredient for cement production
-Little or no surface drainage
500
Give TWO examples of limestone caves in the Caribbean
What are:
◦Aripo Cave Trinidad
◦Harrison Cave Barbados
◦Green Grotto Cave Jamaica