General Instruction:
All Questions are Compulsory.
Question No. 1 to 4 carries one mark each.
Question No. 5 to 10 carry three marks each.
Question No. 11 and 12 carry five marks each.
- Which place receives the highest rainfall in the world?
- What does October Heat stands for?
- Give a feature of Mango Showers.
- Name a rain shadow area.
- What are the features of ‘Loo’?
- Write some features of ‘Mango Shower’.
- Why does Mawsynram gets the heaviest rainfall in the world?
- Explain October heat?
- Write a short not on areas of very high rainfall of India.
- Write a short note on areas of high, low and very low rainfall of India?
- What are Western Cyclonic Disturbances?
- Evaluate spread of monsoon over the Indian sub-continent from Kerala to Jammu and
Kashmir.
CBSE TEST PAPER-04
Class –IX Social Science (Climate)
[ANSWERS]
1) Mawsynram receives the highest rainfall in the world.
2) Hot days and cool nights, during the transition period in October and November.
3) Mango showers are those experienced prior to the arrival of the monsoon. These showers arrive generally in late April and May.
4) The Deccan Plateau i.e Eastern Side of the Sahyadri ranges.
5) a) Loo is the striking feature of the hot weather season.
b) These are strong gusty, hot, and dry winds blowing during the day over the North and North Western parts of India.
c) It is especially strong in the months of May and June. Due to its very high temperatures (45°C to 50°Celsius), exposure to it often leads to fatal sunstrokes.
6) a) Towards the end of the summer season, Pre-monsoon showers are common, especially in Kerala and Karnataka.
b) This spell of rainfall pours down at the end of the summer in the hot weather season. Their arrival is often difficult to predict.
c) They help in the early ripening of mangoes.
d) These are called ‘mango showers’.
7) a) Mawsynram is located in the Southern ranges of the Khasi Hills in Meghalaya at a height of 1500 m above sea level.
b) It receives the highest (annual 1140 cm)rainfall in the world. Mawsynram receives the highest amount of rainfall because This place is enclosed by hills on three sides.
c) The relief features give this place a funnel-shaped location. The Bay of Bengal monsoon is trapped in these hills.
d) These winds try to get out of there but are forced to pour down there.
8) a) The months of October and November are dry months.
b) During October and November, with the apparent movement of the sun towards the south, the monsoon trough or the low-pressure trough over the northern plains becomes weaker. This is gradually replaced by a high-pressure system.
c) The days become very hot in October due to the transition from the hot rainy season to dry winter conditions.
d) This period of high day temperature is called the October Heat.
9) a) The areas receiving an annual rainfall of more than 200 cm come under the areas of very heavy rainfall.
b) The Western Ghats, North-eastern parts of India are the areas getting rainfall more than 200 cm per annum.
c) Some areas such as Mawsynram & Cheraapunji get rainfall more than 1000 cm/annum.
10) a) The areas of heavy rainfall get 100-200cm rainfall annually. Eastern slopes of Western Ghats, northern parts of India, Orissa, & Madhya Pradesh, etc get 100-200cm rainfall.
b) The area of low rainfall gets 60-100 cm rainfall. Maharashtra, western Madhya Pradesh, parts of Gujarat, Andhra Pradesh, Karnataka, eastern Rajasthan, etc are the areas getting 50-100 cm rainfall annually.
c) The areas of very low rainfall getting less than 60 cm rainfall are termed as the very low rainfall areas. Desert areas of Rajasthan and Gujarat, Ladakh region of Jammu and Kashmir, and Leeward side of the Western Ghats get less than 60 cm of rainfall.
11) a) The Western Cyclonic Disturbances are weather phenomena of the winter months.
b) They are brought in by the westerly flow from the Mediterranean region.
c) They usually influence the weather of the north and northwestern regions of India.
d) They bring rainfall in the states of Punjab, Haryana, and western Uttar Pradesh.
e) Tropical cyclones occur during the monsoon as well as in October-November and are part of the easterly flow.
f) This rainfall is very beneficial for the Rabi crops.
12) a) The monsoon arrives at the southern tip of the Indian peninsula generally by the first week of June.
b) Subsequently, it proceeds into two branches, the Arabian Sea Branch and the Bay of Bengal branch.
c) The Arabian Sea branch reaches Mumbai about ten days later on approximately the 10th of June. The Bay of Bengal Branch also arrives in Assam in the first week of June.
d) By mid-June the Arabian Sea branch of the monsoon arrives over Saurashtra, Kutch, and the central part of the country.
e) The Arabian Sea and the Bay of Bengal branches of the monsoon merge over the northwestern part of the Ganga plains due to the high rising Himalayas.
f) By the first week of July, western Uttar Pradesh, Punjab, Haryana, and Eastern Rajasthan experience the monsoon
