NATURAL VEGETATION

Icse class10

NATURAL VEGETATION

Give two reasons to explain as to why we need to conserve our forest resource?

                    I.     Forest provide many major and minor product like wood, gum, fiber, fruits etc.

                  II.     They play a significant role in the prevention and control of soil erosion.

Mention two condition required for the growth of littoral forest?

·         Forest occur in and around the deltas, estuaries, and creeks prone to tidal forest .trees can survive both fresh as well as brackish water.

State one characteristics feature of the forest found in the nilgiri hills.

·     Nilgiri receives rainfall of 150 to 180 cm so moist deciduous forest dominate the region .trees shed their leaves during the dry season.

Give two reasons to explain as to why the tropical evergreen forest is difficult to exploit for commercial purpose?

·         They are very dense

·         Transport is not possible.

Name two trees found in tropical evergreen forests. = ebony and mahogany

Briefly explain the trees in the tropical desert forest have stunted growth.

·         To minimize loss of water. Lack of water and minerals in the soil.

There is a gradual increase in the forest cover in India in recent times.

·         This is due to promotion of social forestry.

The trees in monsoon deciduous forest shed their leaves for about 6-8 weeks during March and April.

·         Due to longer dry season.

Name the area in India where tropical monsoon forest is found?

Eastern slopes of Western Ghats

How is this forest of great commercial value to India?

These forests provide teak, Sal, sandalwood, which are used for furniture and other wood work.

Why do littoral trees grow aerial roots?

Mangrove can live in the most inundated areas, properly themselves up above the water level with silt roots and can take in air through pores in their barks. Root system allows mangroves to take up gases directly from the atmosphere and various nutrients like iron from the inhospitable soil. Gases are quite often store directly inside the roots and processed even when the roots are submerged during high tide.

Name one area in India where this forest is found == deltas of Ganges, Mahanadi, Godavari, Krishna and Cauvery

Name the state in India where thorn and scrub forest is found.

Punjab plains, northern Madhya Pradesh, south – west Uttar Pradesh, (bundelkhand plateau)

Give two ways by which the trees that are found here have adapted to the climate.

Trees remain small, it saves surface through which water evaporates. Develop an extended root system close to the surface and still collect a lot of water during scanty rainfall.

Give two ways forest are important.

·         They play a significant role in the prevention and control of soil erosion

·         Forest plays an important role in regulating the earth temperature and weather patterns by storing large quantities of carbon and water.

Mention one forest conservation method followed in India.

Social forestry

soil of India link is given below
https://sayantani22.blogspot.com/2020/04/icse-class-10-geography-important.html

https://sayantani22.blogspot.com/2020/04/most-important-question-of-soil-from.html

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ICSE CLASS 10 GEOGRAPHY IMPORTANT QUESTION SERIES

This is most important series of geography class 10 ICSE. We will provide all detail solution step by step.

MOST IMPORTANT QUESTIONS OF GEOGRAPHY ICSE CLASS 10 , PART 06

1.     WHY IS THIS SOIL AGRICULTURALLY IMPORTANT?

ü Black soil is formed due to disintegration of basalt which is suitable for cotton.

2.     GIVE REASON: RED SOIL IS RED IN COLOUR.

ü rich in iron oxide

3.      GIVE REASON: LARGE TRACTS IN MAHARASTRA IS COVERED WITH BLACK SOIL.

ü Because of in situ soil which is formed at its own position.

4.     GIVE REASON: MAN IS LARGELY RESPONSIBLE FOR SOIL EROSION.

ü Because of the man made activities such as deforestation, jhooming , grazing land etc.

5.     NAME THE SOIL WHICH IS FORMED DUE TO HIGH TEMPERATURE AND HEAVY RAINFALL WITH ALTERNATING WET AND DRY PERIOD= laterite soil  

6.     NAME THE STATE STATES WHERE THIS TYPE OF SOIL IS FOUND? = Andra Pradesh , Tamil nadu , west Bengal , Kerala

7.     WRITE THE CHRACTERISTICS OF RED SOIL?

Red soil formed in situ by weathering of crystalline and metamorphic rocks and has a mixture of clay and sand. It is found large part of Tamil nadu, Karnataka, north – east Andra Pradesh, Chhattisgarh, and Odisha

 The characteristics of red soil are as follows:

1. Red in color

2. Present in high iron oxide content,

3. Deficient in nitrogen, lime, phosphorous, and humus.

4. Rich in potash.

5. Porous, friable, but not retentive of moisture.

ü  

8.     WHAT IS CONSERVATION OF SOIL?

ü Soil conservation refers to the steps taken to protect the soil from erosion.

9.     NAME ANY TWO FARMING TECHNIQUES WHICH HELP IN SOIL CONSERVATION?

·        Strip cropping

·        agro forestry

10.   DEFINATION:

TRANSPOTATION SOIL: - This soil is formed when the agents of erosion deposit sediments at the place,

IN SITU: - soil is formed at their originate position by weathering of parent rocks is called in situ,

11.   NAME THE SOIL IN WHICH COVERS THE SUMMITS OF EASTERN GHATS.= alluvial soil

12.   NAME THE SOIL IN WHICH MAKES UP THE DELTA OF THE RIVER GANGA.= alluvial soil

13.   NAME THE SOIL IN WHICH IS THE MOST SUITABLE FOR THE CULTIVATION OF COTTON?= black or regur soil

14.   NAME THE SOIL WHICH IS STICKY WHEN WET AND CRACKS WHEN DRY?=black soil or regur soil

15.   WHAT IS SOIL CONSERVATION?

ü Soil conservation refers to the steps taken to protect the soil from erosion.

16.   HOW DOES REFFORESTATION HELP IN SOIL CONSERVATION?

ü Reforestation is the planting of trees .the roots of trees can hold the soil and prevents from soil erosion.

17.   NAME THE PROCESS BY WHICH LATERITE SOIL IS FORMED? = leaching

18.   WHAT CLIMATIC CONDITIONS ARE RESPONSILE FOR ITS FORMATION? high temperature and heavy rainfall

19.   GIVE REASONS FOR: BLACK IS LARGELY FOUND IN THE DECCAN TRAP REGION.

ü  

20.    GIVE REASONS FOR: KHADAR IS MORE FERTILE THAN BHANGAR.

ü  khader is new alluvial soil where as bhanger is old alluvial soil

21.   SOIL EROSION BY WIND IS COMMON IN ARID REGIONS.

ü  

22.   NAME TWO STATES IN INDIA WHERE REGUR SOIL IS FOUND? = Gujarat and Maharashtra

23.   IN WHAT WAY DOES REGUR SOIL IS FOUND?

ü Regur is volcanic origin – lava formed due to disintegration of basalt.

24.   STATE THE DIFFERENCE BETWEEN ALLUVIAL SOILS FOUND IN LOWER COURSES AND THE UPPER COURSES.

25.   NAME THE TWO IMPORTANT AGAINTS OF EROSION?= wind and running water

26.   STATE ONE METHOD OF CONTROLLING THE EROSION CAUSED? strip cropping

27.   STATE TWO METHODS OF CONTROLLING THE EROSION OF SOIL CAUSED BY RUNNING WATER?

ü Sheet erosion: the steep slope has more erosive power of the rain causing sheet erosion over vast stretches.

ü Gully erosion: gully erosion takes place when water runs down or gushes in distinct path, forming hills which deepen to form ravines or gullies

29.   WHICH MAKES THE BLACK SOIL FERTILE?

ü insitu  type of soil rich in iron potash lime calcium ,alumina magnesium and carbonates

30.   GIVE REASONS FOR: LATERITE IS UNSUITABLE FOR CULTIVATION.

ü LATERITE SOIL IF FORMED BY LEACHING OF LATERITIC SOIL UNDER HIGH TEMPERATURE AND HEAVY RAINFALL WITH ALLTERNATING DRY AND WET PERIODS .LEACHING LIME AND SILICA LEAVES BEHIND A POOR SOIL WHICH IS UNSUITABLE FOR GROWTH.

COMPLETE NOTE OD SOIL RESOURCES

https://sayantani22.blogspot.com/2020/04/icse-class-10-geography-important.html 

https://sayantani22.blogspot.com/2020/04/most-important-question-of-soil-from.html 

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ICSE CLASS 10 GEOGRAPHY IMPORTANT QUESTION SERIES

This is most important series of geography class 10 ICSE. We will provide all detail solution step by step.

MOST IMPORTANT QUESTIONS OF GEOGRAPHY ICSE CLASS 10 , PART 05

1.     TRANSPORT SOIL VS  IN SITU

ü  

ü    Transport soil	ü    In situ
ü    This soil is formed when the agents  of erosion deposit sediments at the place	ü    the soil is formed when the parent rocks is broken into small fragments
ü    far away from its parent rocks	ü    near at its parent rocks
ü    extremely fertile	ü    less fertile

2.     BHANGER VS KHADER

Bhanger	Khader
Old alluvial soil	New alluvial
Less fertile	More fertile
Small nodules	Fine texture

3.     NAME THE PROCESS THAT LATERITE SOIL FORMED=  weathering

4.     DISADVANTAGE OF LATERITE SOIL= it is infertile

5.     RED SOILS ARE FOUND IN = Tamil nadu and Karnataka

6.     ADVANTAGE OF RED SOIL= 1.rich in iron oxide 2. It is fertile soil.

7.     TWO IMPOTANT CROP GROWN IN INDIA= wheat and rice

8.     MENTION TWO IMPORTANT CHARACTERISTUCS OF LATERITE SOIL =

High iron oxide

Deficit of nitrogen and lime

Tamil nadu, Andra Pradesh

9.     NAME AN AREA OF BLACK SOIL IN INDIA= Maharashtra and Gujarat

10.   MENTION THE CROP THAT GROWN IN THIS SOIL = cotton jower wheat sugarcane

11.   HOW IS ALLUVIAL SOIL FORMED?

ü alluvial soil is formed due to deposit the materials brought by rivers

12.   WHY IS THIS SOIL AGRICULTURALLY IMPORTANT?

ü because it is more fertile and rich in humus, potash and lime

13.   NAME TWO IMPORTANT AGENTS OF SOIL EROSION? wind and running  water

14.   EXPAIL THE FORMATION OF LATERITE SOIL?

ü laterite soil is formed by leaching in the regions of lateritic rocks under high temperature and heavy rainfall with alternating dry and wet periods

15.   WHY LATERITE SOIL IS NOT SUITABLE FOR CULTIVATION?

ü Leaching of lime and silica leaves behind a poor soil which is unsuitable for cultivation.

17.   KHADAR VS BHANGER SOIL

Bhanger	Khader
Old alluvial soil	New alluvial
Less fertile	More fertile
Small nodules	Fine texture

18.   MENTION THE TWO CHARACTERISTICS OF BLACK SOIL?

Black soil is also known as regur soil which is originated by volcanisms. It has been formed in situ that found in the area where it has been formed. It is found in mainly in decan trap region such as greater parts of Gujarat, Maharashtra, parts of Madhya Pradesh, Chhattisgarh, south Uttar Pradesh etc.

The characteristics of black soil are as follows:

1. Deep fined-grained and varying in color from black to chestnut brown.

2. rich in iron, potash, lime, calcium, alumina, magnesium and carbonates.

3. Moisture retentive and very sticky when it wets

4. when dry, hardens, and forms deep cracks.

5. crops grown such as wheat, jower, fruits and vegetables

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