Tag: rivers

An estuary is the area where a river meets the sea or ocean, where fresh water from the river meets salt water from the sea.

• Weathering is the breakdown of rocks and materials attached to the earth's surface.
• Erosion is the removal of material from their original place on earth's surface after it has been weathered.
• Transportation is the movement of the eroded materials to long distances by the actions of various agents like water, wind etc.
• Hence the sequence will be weathering, erosion and transportation

The moving ice mass downslope under the impact of gravity is called a glacier. About 10% of the earth's surface is now covered by the glacier. Glaciers are generally divided into two broad categories viz.

Weathering refers to the breakdown or disintegration and decomposition of rocks in situ through mechanical and chemical changes in the rocks. Weathering by itself is a static process and does not involve removal of the material. The products of weathering tend to accumulate in a soft surface layer.

Quartz is the second most abundant mineral in the earth’s crust. This is used in making jewelry and hard stone carvings. It is the hardest material and is least susceptible to chemical weathering.

• Glaciers, winds and rainwater are the agents of wethering which imply they are the forces that carry out the breakdown of materials over the earth's surface
  
• Soil is the material which is formed as the result of wethering hence it is not the agent of wethering and this is the right answer.

Evaporative cooling is restricted by atmospheric conditions. Humidity is the amount of water vapor in the air. The vapor content of air is measured with devices known as hygrometers. The measurements are usually expressed as specific humidity or percent relative humidity. The temperatures of the atmosphere and the water surface determine the equilibrium vapor pressure; 100% relative humidity occurs when the partial pressure of water vapor is equal to the equilibrium vapor pressure. This condition is often referred to as complete saturation.

Both a and b

Temperature is an objective comparative measurement of hot or cold. It is measured by a thermometer. Several scales and units exist for measuring temperature, the most common being Celsius (denoted $^{\circ}C$ and formerly called centigrade), Fahrenheit (denoted $^{\circ}F$).

Dras is one of The Coldest Places in India. A lonely town in the infamous Kargil district of Jammu and Kashmir, Dras is popularly known as 'the gateway to Ladakh'. It is known to be the coldest place in India and is recognized as the second coldest inhabited place in the world.