Explanation

• Hanging valleys are formed in glaciated mountainous regions.
• They occur where a small glacier joins a deeper main glacier valley.
• After ice melts, the tributary valley remains hanging above the main valley.
• This is a result of erosion by glaciers, not rivers, wind, or waves.
• Common in Alpine and high mountain landscapes.

Last verified on 02-05-2026

Explanation

• Titan is the largest moon of Saturn.
• It is also the second-largest moon in the solar system after Ganymede.
• It has a thick atmosphere mainly of nitrogen.
• Titan is larger than the planet Mercury in size.

Last verified on 02-05-2026

Explanation

• The ideal depth for fish growth is around 100 fathoms.
• A fathom equals about 6 feet, so 100 fathoms ≈ 600 feet (≈180 meters).
• This zone has suitable light, temperature, and oxygen levels.
• It supports better food availability for marine life.

Last verified on 02-05-2026

Explanation

• Globigerina ooze is the most abundant ooze in the Atlantic Ocean.
• It is made from the shells of foraminifera microorganisms.
• Found mainly in warm and deep ocean waters.
• Rich in calcium carbonate (CaCO₃).
• Important type of deep-sea sediment.

Last verified on 02-04-2026

Explanation

• Stream terraces are step-like landforms along river valleys.
• They are formed when a river gains new erosional energy.
• This process is called stream rejuvenation.
• The river cuts downward into its old floodplain, leaving terrace-like steps.
• Common in mature river valley landscapes.

Last verified on 02-05-2026

Explanation

• Thermal infrared remote sensing detects heat (temperature differences) on Earth’s surface.
• It shows how different objects emit or reflect thermal energy.
• Useful in detecting hot and cold areas clearly.
• Commonly used in weather studies, geology, and environmental monitoring.

Last verified on 02-04-2026

Explanation

• Regression is a statistical method used for prediction and forecasting.
• It shows the relationship between dependent (yield) and independent variables (rainfall, temperature, etc.).
• Commonly used in agriculture to predict crop production.
• Helps in decision-making and planning.

Last verified on 02-05-2026

Explanation

• A Gore is the area between two successive meridians on a map or globe.
• It looks like a curved wedge-shaped strip.
• Commonly used in map projections and globe construction.
• Helps in dividing the Earth into longitudinal sections.

Last verified on 02-05-2026

Explanation

• A Transition Zone is an area where two geographical regions meet.
• Boundaries are not clearly defined.
• It shows mixed characteristics of both regions.
• Common in climate, vegetation, and cultural regions.
• Also called a zone of gradual change.

Last verified on 02-05-2026

Explanation

• A Planimeter is used to measure area on maps.
• It calculates the area of irregular shapes accurately.
• Commonly used in cartography and surveying.
• Useful for measuring land parcels, fields, and regions.
• Works by tracing the boundary of a shape.

Map Measurement Tools:

• Curvimeter → distance along curves
• Compass → direction
• Altimeter → height/altitude
• Scale → distance calculation

Last verified on 02-05-2026