Q78.
Consider the following activities : 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters How many of the above activities are often considered and discussed for carbon capture and sequestration?
Answer
C
Explanation
1 is correct: Adding crushed rock dust to could draw down up to two billion tonnes of dioxide (CO2) from the air per year. The known as enhanced rock weathering, spreading finely crushed basalt, a natural rock, on fields to boost the soil’s ability to CO2 from the air. 2 is correct: When you add lime to seawater, reacts with that acid and neutralizes it, forming a ion. The effect is a boost in alkalinity to the and greater ocean alkalinity means more CO2 be absorbed. 3 is correct: Geological storage involves CO2 captured from industrial processes into formations deep underground, thereby removing it from the atmosphere. an cap rock or barrier at the top of the formation contain the CO2 permanently.