Dear parents,
Kindly note, the following are the worksheets to direct
students towards self learning. Please note that these worksheets are for
additional practice and are optional.
English
Maths
SST
Note down the following in your notebook and submit on 23/10/16, Sunday.
UNIT-4
PLANTS
FOREST AS RESOURCE
1. What is a Resource?
Ans: Resource is a stock
or supply of money, materials, staff, and other assets that can be drawn on by
a person or organization in order to function effectively.
2. What are the different types of resources?
Ans: There three
types of resources: natural, human and capital resources. All three types of resources are used together to
produce goods and services needed by humans for their survival.
DEFINE:
a) Natural
Resource: A natural resource refers to elements or things found in the
environment such as land, water and minerals. .
b) Human Resource: Human resource refers to people, while capital resources
refer to money, tools and equipment.
c) Capital
Resource: Capital resources are goods made and used to produce
other goods and services. Examples include buildings, machinery, tools and
equipment.
FOREST AS RESOURCE
Forests support diverse life forms. A
forest provides three ingredients essential for the survival of any living
species: water, food and shelter.
Benefits
of Trees:
·
Trees are home to many
creatures.
·
Without trees and the forests, our planet
would not be able to support most living things or organisms.
·
More than 90% of all species living on land
make their homes in trees and forests.
·
Trees act like the lungs of
the earth.
·
Trees help the planet
breathe by purifying the air and providing oxygen.
3. What is Afforestation?
Ans: Afforestation is the process of establishing a forest on land that is
not a forest, or has not been a forest for a long time by planting trees or
their seeds.
4. What are the benefits of
Afforestation?
·
Preserves Wildlife :
Afforestation is
useful especially when it comes to protecting wildlife.
·
Tourist Attraction :
A forest is more
attractive to the eye than a waste land and also encourages ecotourism.
·
Minimises Soil Erosion
Soil erosion is
significantly reduced as tree plantations prevent run off of soil after heavy
rains.
·
Provides Forest
Products
The explosion of
livestock and human population has increased demand for forest and timber
products.
·
Stabilises the Climate:
Planting of trees in semi-arid areas attracts
rainfall and prevents semi arid areas from becoming deserts.
5. What is deforestation?
Ans: Deforestation is the removal of a
forest or stand of trees after which the land is converted to a non-forest use.
Examples of deforestation include conversion of forestland to farms, ranches,
or urban use.
6) What are the causes of
deforestation?
Ans: The main causes of deforestation are logging, mining, oil and gas
extraction, cattle ranching and agriculture.
7) What are the Consequences of
Deforestation ?
·
Soil erosion: loss of the protective vegetation cover that binds the soil
with its roots leads to more soil being lost.
·
Silting of water courses, lakes and dams: occurs as a result of soil erosion.
·
Extinction of Species: more than half of
all species on our planet live in forests and deforestation destroys their
habitat.
·
Desertification: deforestation is one of the contributing factors for
desertification.
