Explanation

• A fault is a crack in Earth’s crust where rocks move.
• The line where the fault plane meets the ground surface is called the fault trace.
• It shows the visible surface expression of a fault.
• It helps geologists study earthquake zones.
• Fault trace is commonly used in structural geology.

Last verified on 02-05-2026

Explanation

• On topographical maps, small triangles represent survey control points.
• These are called trigonometrical stations (trig points).
• They are used for accurate land measurement and mapping.
• The figures written with them show height or reference data.
• They help in creating precise geographic maps.

Last verified on 02-05-2026

Explanation

• Australia is a developed country with strong industrial base.
• Its key industries include iron and steel production.
• The country is rich in iron ore and mineral resources.
• Mining supports steel and heavy industry growth.

Last verified on 02-05-2026

Explanation

• A dune is a sand hill formed by wind action.
• The steeper leeward side is called the slip face.
• It forms where sand falls after reaching the top of the dune.
• This side is steep due to gravity and sand movement.
• It is a common feature in desert geography.

Last verified on 02-05-2026

Explanation

Earth rotates 360° in 24 hours.

So, 1 hour = 15° longitude.

And 1 minute = 0.25° (15° ÷ 60).

Time difference = 2 hr 20 min.

Longitude difference = 35°.

Last verified on 02-05-2026