Match List I with List II and select the correct answer using the code given below the Lists: List I (Cloud) List II (Characteristic) A. Cirrus 1. Rain giving B. Stratus 2. Feathery appearance C. Nimbus 3. Vertically growing D. Cumulus 4. Horizontally spreading
A - 2, B - 4. C - 1, D - 3
Understanding Cloud Types and Characteristics
Clouds are visible masses of water droplets or ice crystals suspended in the atmosphere. They are classified based on their appearance and altitude. Different cloud types are associated with distinct weather patterns and visual characteristics.
Matching Clouds with Their Characteristics
The question asks us to match different types of clouds from List I with their defining characteristics from List II. Let's examine each cloud type and its typical appearance and associated weather.
| List I (Cloud) | List II (Characteristic) |
|---|---|
| A. Cirrus | 1. Rain giving |
| B. Stratus | 2. Feathery appearance |
| C. Nimbus | 3. Vertically growing |
| D. Cumulus | 4. Horizontally spreading |
Analyzing the Matches based on Cloud Characteristics
- A. Cirrus Clouds: These are high-altitude clouds made of ice crystals. They typically have a thin, wispy, or feathery appearance. They do not produce precipitation that reaches the ground. This matches characteristic 2. Feathery appearance.
- B. Stratus Clouds: These clouds form in flat, horizontal layers. They often cover the entire sky like a blanket and can cause overcast conditions or drizzle. Their defining characteristic is their horizontal spread. This matches characteristic 4. Horizontally spreading.
- C. Nimbus Clouds: The term "nimbus" or "nimbostratus" specifically refers to clouds that are rain-producing. Nimbostratus clouds are dark, low-level clouds known for continuous rain or snow. Cumulonimbus clouds are also rain-giving, often associated with thunderstorms. So, clouds labelled 'Nimbus' are directly linked to rain. This matches characteristic 1. Rain giving.
- D. Cumulus Clouds: These are puffy, detached clouds with flat bases and rounded tops. They often look like cotton balls. They grow vertically, especially on warm, sunny days when convection lifts moist air. If they grow tall enough (becoming Cumulus congestus or Cumulonimbus), they can produce showers. Their initial and primary growth pattern is vertical. This matches characteristic 3. Vertically growing.
Compiling the Correct Matches
Based on the analysis:
- A (Cirrus) matches 2 (Feathery appearance)
- B (Stratus) matches 4 (Horizontally spreading)
- C (Nimbus) matches 1 (Rain giving)
- D (Cumulus) matches 3 (Vertically growing)
This gives us the combination: A - 2, B - 4, C - 1, D - 3.
Final Matching Result
| Cloud Type | Characteristic | Match |
|---|---|---|
| Cirrus | Feathery appearance | A - 2 |
| Stratus | Horizontally spreading | B - 4 |
| Nimbus | Rain giving | C - 1 |
| Cumulus | Vertically growing | D - 3 |
Revision Table: Key Cloud Characteristics
| Cloud Type | Appearance | Altitude (Typical) | Precipitation | Key Feature |
|---|---|---|---|---|
| Cirrus | Thin, wispy, feathery | High (>6,000 m) | None reaching ground | Ice crystals, 'mare's tails' |
| Stratus | Flat, layered, gray blanket | Low (<2,000 m) | Drizzle, mist (if any) | Horizontal layers |
| Cumulus | Puffy, cotton-like, flat base | Low to Medium (bases <2,000 m, tops vary) | Usually none (fair weather) unless growing tall | Vertical development |
| Cumulonimbus | Large, towering, anvil shape | Low to High (base <2,000 m, top up to 15,000+ m) | Heavy rain, thunderstorms, hail, lightning | Significant vertical growth, rain-bearing |
| Nimbostratus | Dark, gray, shapeless mass | Low to Medium (<2,000 m base) | Continuous moderate rain or snow | Rain-bearing, horizontally spread |
Additional Information on Cloud Formation and Types
Clouds form when water vapor in the air cools and condenses into tiny liquid droplets or ice crystals. This cooling usually happens when air rises and expands. The shape and altitude of clouds depend on factors like atmospheric stability, temperature, and wind.
- Classification by Altitude: Clouds are also grouped by the height at which they typically form:
- High clouds (above 6,000 m): Cirrus, Cirrocumulus, Cirrostratus (made of ice crystals)
- Middle clouds (2,000 m to 6,000 m): Altocumulus, Altostratus (made of water droplets or ice crystals)
- Low clouds (below 2,000 m): Stratus, Stratocumulus, Nimbostratus (made of water droplets)
- Clouds with Vertical Development: Some clouds, like Cumulus and Cumulonimbus, can span multiple altitude levels due to strong updrafts.
- "Nimbus" Prefix/Suffix: The word "nimbus" indicates a cloud that produces precipitation. Nimbostratus gives continuous rain, while Cumulonimbus gives showery precipitation and thunderstorms.
Understanding these basic cloud types and their characteristics helps in interpreting weather patterns.
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Match List-I with List-II and select the correct answer using the code given below the Lists:
List I
(Low-Latitude Climate)
List I
(Characteristic)
A. Wet Equatorial 1. Uniform temperatures, mean near 27°C B. Monsoon and trade wind coastal 2. Marked temperature cycle with very high temperature before the rainy season C. Wet-dry tropical 3. Temperatures show an annual cycle with a high temperature in the high-Sun season Strong temperature cycle. with intense temperature during the high-Sun season D. Dry tropical 4. Strong temperature cycle, with intense temperature during the high-Sun season
Which one of the following can be said to be essentially related to ‘Polar Front Theory’?
Consider the following statements about Roaring Forties:
1) There are strong Westerly winds found in the oceans of the Southern Hemisphere.
2) The strong east to west air currents are caused by the combination of air being displaced from the equator towards the South Pole and the earth’s rotation and abundance of landmasses to serve as windbreaks.
Which of the statements given above is/are correct?
Consider the following characteristics of a tropical cyclone:
1. A warm sea temperature of > 26 0C
2. High relative humidity of atmosphere at a height of > 700 m
3. Atmospheric instability
The above mentioned characteristics are associated with which one of the following cycles of its development?
Which one of the following pairs of properties of typical air masses is correct?
Air Mass Source Region A. Maritime Equatorial Warm oceans in the equatorial zone B. Maritime Polar Warm oceans in the tropical zone C. Continental Tropical Less warm oceans in the tropical zone D. Continental Polar Moist oceans in the polar zone Rain shadow effect is associated with
Which of the following statements concerning temperature is/are correct?
1) In winter season isotherms in Northern Hemisphere are more or less circular on continents
2) Isotherms are parallel to latitude in Southern Hemisphere in oceans
3) Minimum temperature during winter is recorded in North Canada
Select the correct answer using the code given below:Which of the following statements regarding tropical cyclones is/are correct?
1. These storms develop during the summer and autumn in every tropical ocean except the South Atlantic and eastern South Pacific Oceans.
2. Tropical cyclones that occur in the North Atlantic and eastern North Pacific Oceans are known as typhoons.
3. Tropical cyclones that occur in the Indian and South Pacific Oceans are called cyclones.
Select the answer using the code given below:
Important Questions from Climatology
In which of the following atmospheric layers ozone gas is concentrated?
Ozone layer depletion is a major phenomenon in :
By which layer of the atmosphere the ultra-violet rays are absorbed ?
______ is the uppermost layer of the atmosphere.
Which of the following is correct about insolation?
I. It influences the distribution of temperature.
II. It increases from the equator towards the poles.
