MQC/Q&A OF NATURAL VEGETATION AND WILDLIFE FOR CLASS 7

1. Taiga means pure or untouched in the _______language.

Ans. Russian

2. In the polar region the animals have thick fur and thick skin to protect them from the__________.

• Moist climatic conditions
• Warm climatic conditions
• Hot climatic conditions
• Cold climatic conditions

Ans. Cold climatic conditions

3. Which one of the following regions are NOT matched correctly with the Grasslands found there?

• Australia- Pampas
• East Africa- Savanna
• Brazil- Campos
• Venezuela- Llanos

Ans- Australia- Pampas

4. ___________ adapt themselves to dry summers with the help of their thick barks and wax coated leaves which help them reduce transpiration.

• Coniferous trees
• Mediterranean trees
• Deciduous Forests
• Evergreen Forests

Ans.- Mediterranean trees

5. The changes in the type of natural vegetation occur mainly because of the changes of –

• Climatic condition
• Physical condition
• Classical condition
• Realistic condition

Ans. Climatic condition

6. Wild buffaloes, bisons, antilopes are commonly found in the –

• Temperate region
• Tropical region
• Frigid region
• Subtropical region

Ans- Temperate region

7. Which one of the following vegetation grows in the area where temperature and rainfall are plentiful?

• Forests
• Grassland
• Shrubs
• Herbs

Ans- Forests

8. Which one of the following is a Tropical Grasslands?

• Prairie
• Campos
• Veld
• Steppe

Ans- Campos

9. __________regions are known as ‘Orchards of the world’ for their fruit cultivation.

• Caspian
• Polar
• Mediterranean
• Equatorial

Ans- Mediterranean

10. Which type of forest dominates most part of India?

• Tropical Deciduous Forests
• Tropical Evergreen Forests
• Temperate Deciduous Forests
• Temperate Evergreen Forests

Ans- Tropical Deciduous Forests

QUESTION AND ANSWERS OF NATURAL VEGETATION AND WILDLIFE

1. Define Natural Vegetation.

Ans.- Natural vegetation refers to a plant community, which has grown naturally without human aid and has been left undisturbed by humans for a long time. 

2. Which are the two factors on which the growth of vegetation mostly depends?

Ans.- The growth of vegetation depends on temperature and moisture. It also depends on factors like slope and thickness of soil.

3. Classify Natural vegetation in to three broad categories.

Ans.- Natural vegetation is generally classified in to three broad categories as follows:

• Forests: Which grow where temperature and rainfall are plentiful to support a tree cover. Depending upon these factors, dense and open forests are grown.
• Grasslands: Which grow in the region of moderate rain.
• Shrubs: Thorny shrurbs and scrubs grow in the dry region

4. Discuss tropical evergreen forests under the following headings:

a) Location, b) Climatic condition, c) Any two characteristics d) Important trees

Ans. Tropical Evergreen Forests

5. Name the different types of trees found in tropical deciduous forest. How are they useful?

Ans.

• The hardwood trees are found in these forests such as sal, teak, neem and shisham. 
• Hardwood trees are extremely useful for making furniture, transport and constructional materials. 

6. Discuss temperate deciduous forests under the following headings:

a) Location, b) Characteristics d) Important trees           

Ans.

Temperate deciduous forests

• Location – These are found in the north eastern part of USA, China, New Zealand and Chile. They are also found in the coastal regions of Western Europe. 
• Characteristics – They shed their leaves in the dry season. 
• Important trees – The Important trees are oak, ash, beech, etc. Deer, foxes, wolves are the animals commonly found. 

7. Name the important Coniferous trees. What are their main features? Give any two uses of coniferous trees.

Ans.- Coniferous Trees

• Chir, cedar and pine are the important coniferous trees.. 
• They are found on the higher latitudes (50° – 70°) of Northern hemisphere. These forests are also seen in the higher altitudes. 
• They are tall, softwood evergreen trees. 
• The woods of coniferous trees are very useful for making pulp, which is used for manufacturing paper and newsprint.
• Match boxes and packing boxes are also made from softwood.

8. Where are the Mediterranean Vegetation found? Name the citrus fruits cultivated here. In which climatic conditions are citrus fruits cultivated?

Ans.- Mediterranean Vegetation

• The west and south west margins of the continents have Mediterranean vegetation.
• It is mostly found in the areas around the Mediterranean sea in Europe, Africa and Asia, hence the name.
• This kind of vegetation is also found outside the actual Mediterranean region in California in the USA, south west Africa, south western South America and South west Australia.
• Citrus fruits such as oranges, figs, olives and grapes are commonly cultivated here.
• These fruits are cultivated in the regions which are marked for hot dry summers and mild rainy winters.

9. How are tropical grasslands different from temperate grasslands?

Ans. Tropical grasslands are different from temperate grasslands in the following ways.

Tropical grasslands	Temperate grasslands
These occur on either side of the equator and extend till the tropics	These are found in the mid latitudinal zones and in the interior part of the continents.
The grass can grow very tall, about 3 to 4 metres in height.	Usually, grass here is short and nutritious.
Elephants, zebras, giraffes, deer, leopards are common in tropical grasslands	Wild buffaloes, bisons, antilopes are common in the temperate region.

10. Mention the main features of Thorny bushes.

Ans.- the main features of Thorny bushes are as follows.

• Thorny bushes are found in the dry desert like regions.
• Tropical deserts are located on the western margins of the continents.
• The vegetation cover is scarce here because of scanty rain and scorching heat.

11. Where is Tundra type of vegetation found? Name some of the flora and fauna found here.

Ans.- Tundra type of vegetation

• Tundra type of vegetation is found in the polar areas of Europe, Asia and North America.
• The growth of natural vegetation is very limited here. Only mosses, lichens and very small shrubs are found here.
• Seal, walruses, musk-oxen, Arctic owl, Polar bear and snow foxes are some of the animals found here.