Soil, Water, Natural Vegetation and Wildlife Resources
Q61. “Vegetation and wildlife are valuable resources.” Comment
Vegetation and wildlife are valuable resources.
Plants provide us with timber, give shelter
to animals, produce oxygen we breathe, protects soils so essential for growing
crops, act as shelter belts, help in storage of underground water, give us
fruits, nuts, latex, turpentine oil, gum, medicinal plants and paper.
Wildlife includes animals, birds, insects
as well as the aquatic life forms. They provide us milk, meat, hides and wool.
Insects like bees provide us honey, help in pollination of flowers and have an
important role to play as decomposers in the ecosystem. The birds feed on
insects and act as decomposers as well. Vulture due to its ability to feed on
dead livestock is a scavenger and considered a vital cleanser of the
Q62. What are the threats to natural vegetation and wildlife?
Threats to natural vegetation and wildlife are:
Changes of climate and human interferences
can cause the loss of natural habitats for the plants and animals. Many species
have become vulnerable or endangered and some are on the verge of extinction.
Deforestation, soil erosion, constructional
activities, forest fires, tsunami and landslides are some of the human made and
natural factors which together accelerate the process of
extinction of these great natural resources.
One of the major concerns is the increasing
incidents of poaching that result in a sharp decline in the number of
Q63. Suggest some methods of soil conservation.
methods of soil conservation are
The bare ground between plants is covered with a layer of organic matter like
straw. It helps to retain soil moisture.
barriers: Stones, grass, soil are used to build barriers along
contours. Trenches are made in front of the barriers to collect water.
Rocks are piled up to slow down the flow of water. This prevents gullies and
further soil loss.
farming: These are made on the steep slopes so that flat
surfaces are available to grow crops. They can reduce surface run-off and soil erosion.
Different crops are grown in alternate rows and are sown at different times to
protect the soil from rain wash.
ploughing: Ploughing parallel to the contours of a hill slope to
form a natural barrier for water to flow down the slope.
belts: In the coastal and dry regions, rows of trees are
planted to check the wind movement to protect soil cover.