Maharashtra Board Class 9 Geography Solution Chapter 5 – Precipitation
Balbharati Maharashtra Board Class 9 Geography Solution Chapter 5: Precipitation. Marathi or English Medium Students of Class 9 get here Precipitation full Exercise Solution.
Board |
MSBHSE Maharashtra Board |
Subject |
Geography Solution (Bhugol) |
Chapter |
Precipitation |
Q1 Identify the precipitation type with the help of the description given:
(a) It is the main source of the water that you use. Sometimes it is torrential and sometimes continuous. Most of the agriculture in India is dependent on it.
Ans) Rainfall
(b) It seems as if water droplets are floating in the atmosphere. In London, one cannot see the Sun till the afternoon during winters because of this phenomenon.
Ans) Fog
(c) It never precipitates like this in equatorial areas. Precipitation in the solid form sometimes causes damage to the crops.
Ans) Frost
(d) A white cotton like layer spreads on the earth’s surface. Because of this form of precipitation, the State of Jammu and Kashmir has to change its capital in winters. In Maharashtra, it does not precipitate like this.
Ans) Snowfall
Q 4. Identify the odd man out :
(1) Orographic rainfall, acid rain, cyclonic rainfall, convectional rainfall
Ans) , acid rain
(2) Snowfall, rainfall, hailstones, dew
Ans) dew
(3) Thermometer, rain gauge, anemometer, measuring jar
Ans) measuring jar
Q 5. Answer in brief:
(1) In what ways does precipitation occur on the earth?
Ans) When the water falls on the ground from the clouds in a solid or liquid form is calledprecipitation. Snow, hailstones, rainfall are the three ways ofprecipitation.
- Snow- Water vapour directly turns into snowflakes and creates snowfall when the temperature in the atmosphere falls below the freezing point.
- Hail- Much heat on the earth’s surface and the upward air floware the reason behind hailstone.The upward movement of the airtakes all the droplets to a higher altitude and makes solidification because of which hailstone occurs.
- Rainfall- Reduced temperature of the air with water vapour in higher altitude occurs Condensation of the vapour. This condensed water droplets creates Clouds by accumulating dust particles. When they cannot float in the air anymore because of their weight, they come down as rainfall.
(2) Comment on the rainfall occurring in the rain shadow area.
Ans) The side of the mountain which experiences more rain fall is called windward side. The opposite side of the mountain is called leeward side and it gets lesser rainfallof the obstruction of the mountains. The amount of vapour in the air reduces after crossing the mountain and the moisture holding capacity of the air also increases. This area is also called rain shadow area.
(3) Which type of rainfall occurs in most of the world? Why?
Ans) Orographic rainfall occurs in most of the world.
It happens when moisture-laden winds coming from lakes or seasobstructed by the high mountain ranges.
(4) If condensation occurs closer to the earth’s surface, what types of forms become visible?
Ans) If condensation occurs closer to the earth’s surface it creates Fog, dew and frost.
Fog-Reduced temperaturenear the surface of the earth condenses water vapour and turns it into microscopic water particles. Fog occurs, when the density of these droplets in the air increases.
Dew-Moisture-laden air near the earth’s surface creates dew drops by coming into contact with very cold objects.
Frost-Frozen water droplet is called frost and it is created when the temperature of the air is less than 0oC.
Q 6. Distinguish between –
(1) Dew and frost
Ans) Dew-Moisture-laden air near the earth’s surface creates dew drops by coming into contact with very cold objects. It occurs because of the condensation of water droplets.
Frost-Frozen water droplet is called frost and it is created when the temperature of the air is less than 0oC. It occurs due to the freezing of water droplets.
(2) Snow and hail
Ans) Snow- Water vapour directly turns into snowflakes and creates snowfall when the temperature in the atmosphere falls below the freezing point.
Hail- Much heat on the earth’s surface and the upward air flow are the reason behind hailstone.The upward movement of the air takes all the droplets to a higher altitude and makes solidification because of which hailstone occurs.
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