What is the number of elements of the earth’s magnetic field?

Correct option is D

Correct Answer: (d) Three
Explanation:
· The Earth’s magnetic field is described using three fundamental elements:
1. Magnetic Declination (D) – angle between geographic north and magnetic north.
2. Magnetic Inclination / Dip (I) – angle made by magnetic field lines with the horizontal.
3. Horizontal or Total Intensity (H or F) – strength of Earth’s magnetic field.
Information Booster:
· These three elements help determine navigation, compass correction, and mapping of Earth’s magnetic variations.
· Magnetic field measurement is crucial for studying geomagnetism, plate movement, and ionospheric science.