3.1 - Limestone

Limestone is composed mainly of:

The chemical weathering process that mainly dissolves limestone is called:

Rainwater becomes weakly acidic mainly because it contains dissolved:

A permeable rock is one that:

In limestone areas, surface streams may be small because water often:

A dripstone feature that hangs from a cave roof is a:

The chemical formula for calcium carbonate is:

Which sequence correctly shows how carbonation starts?

A farmer in Barbados notices that a small gully ‘disappears’ into the ground after heavy rain. The most likely feature is a:

Why can limestone landscapes be described as having ‘underground drainage’?

In a warm, humid Caribbean climate, carbonation is often effective because:

A spring (resurgence) in a limestone area is best described as:

Which evidence most strongly suggests an area is underlain by limestone?

When drip water in a cave loses CO₂, limestone may re-form as:

A student says, “Limestone is permeable, so flooding cannot happen in limestone areas.” Which evaluation is best?

Two areas receive the same rainfall in Jamaica. Area X is limestone with many joints; Area Y is granite with few cracks. Which is most likely true about surface drainage, and why?

Which set of statements is correct? 1. Limestone is mainly CaCO₃. 2. Carbonation is a chemical weathering process. 3. Permeability in limestone is often due to joints and bedding planes. 4. Carbonation happens only in deserts.

A village relies on a limestone spring for water. After a long dry spell, the spring flow drops sharply. Which explanation is most reasonable?

A dry valley is found in a limestone region of the Bahamas. The best reasoning is that:

A quarry worker tests a rock with a weak acid and observes steady fizzing. Which conclusion is most justified?

A cave system is forming in limestone. Which option best links the key ideas in order?