Geography
Assertion (A): The lava and ash deposited during an eruption breaks down to provide valuable nutrients for the soil and thus create fertile soil.
Reason (R): Agricultural fields are covered with layers of volcanic ash and dust making them unsuitable for cultivation.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Answer
Both A and R are true and R is the correct explanation of A.
Explanation — Agricultural fields are covered with layers of volcanic ash and dust making them unsuitable for cultivation, but only temporarily. In fact, once weathered and broken down the lava and ash deposited during an eruption provides valuable nutrients to the soil making it fertile.
Related Questions
Mt. Vesuvius, Mt. Etna are located in the:
- Circum Pacific belt
- Mid-world Mountain Belt
- Pacific Ring of fire
- None of the above
……………… are also known as Thermal Springs.
- Hot springs
- Geysers
- Volcano
- Caldera
The area marked brown colour on the map given above is referred to as the Pacific Ring of Fire. Why is it so called?
What is a volcano? Give one example.