Tag: geography

Questions Related to geography

Rain shadow area is associated with which type of rainfall?

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Convectional rainfall

  2. Orographic rainfall

  3. Cyclonic rainfall

  4. Frontal rainfall

Show answer
Correct Option: B
Explanation:

Rain shadow area is associated with orographic rainfall. When the saturated air is obstructed by land form barrier such as mountain, it forced to ascend and as it rises, it expands and temperature falls. As a result, condensation takes place and rainfall occurs. In this type of presentation, the windward slope of the mountain receives maximum rain and the leeward slope remains generally drier and is known as the rain shadow area.  

What is cyclone?

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Specific air formation when the pressure at an area is less than the surrounding regions.

  2. Specific air formation when the pressure at an area is high than the surrounding regions.

  3. Rainfall

  4. All of above

Show answer
Correct Option: A
Explanation:

Specific air formation when the pressure at an area is less than the surrounding regions. This is called cyclone. Air from the surrounding region comes towards the center of the cyclone and starts moving upwards.

Why in equatorial areas, the surface get heated?

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Because of sun's heat

  2. Because of hot air

  3. Because of acid rain

  4. None of these

Show answer
Correct Option: A
Explanation:

In equatorial areas, the surface gets heated because of the sun's heat and the air near it also gets heated. As it gets heated, it spreads and becomes lighter and moves upwards.

The Wind which descends on the Leeward Side is heated adiabatically and is called ____________.

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. loo

  2. trade wind

  3. katabatic wind

  4. monsoon

Show answer
Correct Option: C
Explanation:
Katabatic winds
Katabatic wind  is the generic term for downslope winds flowing from high elevations of mountains, plateaus, and hills down their slopes to the valleys or planes below. Katabatic winds exist in many parts of the World and there are many different names for katabatic winds depending where they are located and how they are formed. 

Warm, dry katabatic winds occur on the lee side of a mountain range situated in the path of a depression. Examples for these descending, adiabatically warmed katabatic winds are the Foehn winds. 

Cold and usually dry katabatic winds, like the Bora, result from the downslope gravity flow of cold, dense air. Katabatic flows slumping down from uplands or mountains may be funneled and strengthened by the landscape and are then known as mountain gap wind such as the Santa Ana, mountain breeze or drainage wind. The gentler katabatic flows of hill slopes produce frost hollows. Mountain breezes are part of a local wind system. When the mountainside is heated by the Sun the mountain breeze will break down, reverse and blowing upslope. These winds are known as valley wind or anabatic wind.

Which o the following is mainly responsible for the orographic rainfall occurs?

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Because of the obstruction of the mountains

  2. Because of the sun's heat

  3. Because of the convectional process

  4. None of these

Show answer
Correct Option: A
Explanation:

Winds coming from lakes or seas are moisture-laden. They are obstructed by the high mountain ranges coming in their way. They start going upwards along the slope of the mountains, the temperature of these winds drop and condensation occurs and rainfall takes place. Thus because of the obstruction of the mountains, this type of rainfall occurs.

The capacity of the air to hold water vapour _______.

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Increases as the temperature increases

  2. Decreases as the temperature increases

  3. Increases as the temperature decreases

  4. Decreases as the temperature decreases

Show answer
Correct Option: A
Explanation:

Increases as the temperature increases,

The water-vapor content of the atmosphere varies from place to place and from time to time because the moisture-holding capacity of air is determined by temperature. At 30 °C (86 °F), for example, a volume of air can contain up to 4 percent water vapour. At -40 °C (-40 °F), however, it can hold no more than 0.2 percent. The more the temperature more is the water holding capacity.

Water on Earth comes mainly from which of the following? 

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Taps

  2. Rain

  3. Wells

  4. None of these

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Correct Option: B

Acid precipitation is now regarded as a serious problem in some European and Asian countries. Its major cause or source is __________________.

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. discharge of effluents into neutral or slightly alkaline land where the acidic components precipitate

  2. emissions of sulphur oxides and nitrogen oxides from thermal power plants and burning the fossil fuels; these oxides dissolve in atmospheric water vapour and fall back on earth as acid rain

  3. natural carbondioxide released during respiraion of living organisms dissolves in water, forming carbonic acid which is chief contributor to acidity in rain water

  4. chloroflurocarbons readily react with various chemicals near the earth's surface, producing acidic intermediates which cause acid precipitation

Show answer
Correct Option: B
Explanation:

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

Cloud, snow, sleet and hail are the forms of __________.

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. Plants

  2. Precipitation

  3. Soil

  4. Pressure

Show answer
Correct Option: B
Explanation:

Precipitation is any type of water that forms in the Earth's atmosphere and then drops onto the surface of the Earth.

The rain that falls from clouds but freezes before it reaches the ground is called sleet or ice pellets.

Snow is precipitation that falls in the form of ice crystals

Hail  forms when very cold water droplets freeze, or turn solid, as soon as they touch things like dust or dirt

Water vapor in the atmosphere is visible as clouds and fog.

When water particles condenses on air and dust, it forms __________.

geography hydrologic cycle the atmosphere elements of weather and climate :humidity hydrologic cycle and its components elements of weather and climate : temperature

  1. mist

  2. fog

  3. frost

  4. vapour

Show answer
Correct Option: A
Explanation:

It forms mist. It is a phenomenon caused by the small water droplets of water suspended in the air. When the warm moist air meets the sudden cooling, mist is formed.