UNIT 7 ENVIRONMENT CONSERVATION AND SUSTAINABILITY
Key unit competence: To use the language learnt in the context of
environment conservation and sustainability
Introductory Activity Picture interpretation
Observe the above pictures and answer the following questions:
1. What Fig 1,2,3,4 represent?
2. Provide the main elements of our physical environment.
3. Why is it important to protect our environment?
4. Which methods can we use to conserve our environmental
resources?
7.1. Talking about physical elements of environment
7.1.1. Learning activity: Reading and Text Analysis
Read the text below and answer questions that follow:
• Text: The physical environment
The physical environment can be defined as that which operates on an
ongoing basis regardless of the persons in it. This physical environment
then affects the actions of and outcomes concerning the people within it.
The physical environment includes land, air, water, plants and animals,
buildings and other infrastructure, and all of the natural resources
that provide our basic needs and opportunities for social and economic
development.
Say, for example, you are playing sport and it is a windy day. You have
to adjust your game to ensure that you allow for the way the wind is
blowing. All processes and behaviours take place within specific physical
environments. Within a classroom for example lighting, acoustics, size,
comfort, safety, access to technology, etc. create and add to a physical
environment that is either conducive to learning or perhaps distracting.
Therefore, a simple definition of any physical environment would be
your natural surroundings including whether it is clean or dirty and the
things within it and how they interact to create a ‹space.›
It is also known as the whole physical and biological system surrounding
man and other organisms along with various factors influencing them.
The factors are soil, air, water, light, temperature etc. These are called
A biotic factors. Besides a biotic factors, the environment is very much
influenced by biotic factors which include all forms of life like plants,
animals, microorganisms etc. Man is thus an inseparable part of the
environment. Man and Environment have very close relationship with
each other. The social life of man is affected by environment. This is the
reason for various types of social and cultural activities around the world.
The hilly people have different life styles than people in the plain area.
Similarly, people around the world differ in their food, cloth, festivals etc.
All these are influenced by the factors around him.
Natural vegetation, such as forest cover, is usually the most benign
of land uses, with higher infiltration and reduced runoff rates. The
opposites of forest cover are urbanized areas, where large surface areas
are impermeable, and pipes and sewer networks augment the natural
channels. The impervious surfaces in urban areas reduce infiltration
and can reduce the recharge of groundwater. In addition, urban runoff
contributes to poor water quality.
Agricultural activities are major forms of land use, including row
crops, rangelands, animal farms, aquaculture, and other agribusiness
activities. Cropping activities involve soil and water manipulation
through tillage and irrigation, thereby affecting runoff water and
groundwater resources. If improperly used, fertilizer and plant protection
chemicals in agricultural operations can affect water resources and
ecosystems.
Urban and agricultural land uses contribute to what is termed nonpoint
source pollution in watersheds. Nonpoint-source pollution is defined
as diffuse (spread-out) sources of contamination from a wide area
of a landscape, often difficult to be attributed to a single location.
Transportation infrastructure (e.g., roads and airports) is another type of
land use that affects water resources through road runoff and alterations
to components of the hydrologic cycle.
Therefore, a cleanliness and beauty of the environment is also important
for people’s sense of wellbeing. For many people, access to an attractive
physical environment contributes greatly to their contentedness with life.
A healthy environment also provides recreational opportunities, allowing
people to take part in activities they value. The clean, green environment
is also integral part of national identity, and guardianship of the land
and other aspects of the physical environment is seen as important part
of social wellbeing.
http://www.waterencyclopedia.com/La-Mi/Land-Use-Planning.html#ixzz5zl2OUinI
Comprehension questions
1. What is physical environment according to the author?
2. Which activities people can do on land?
3. Why the writers say that physical environment affects human
activities?
4. Do you think physical environment can influence the food people
eat? Explain.
5. Explain the importance of healthy environment as described in
the passage.
7.1.2. Application activity:
7.2. Describing environmental features and their roles
7.2.1. Learning activity: Reading and Text analysis
Read the following text and answer questions given:
• A text: Environmental Features
Rwanda has a temperate tropical highland climate, with lower
temperatures than are typical for equatorial countries due to its
high elevation. Kigali, in the centre of the country, has a typical daily
temperature range between 12 °C (54 °F) and 27 °C (81 °F), with little
variation through the year. There are some temperature variations
across the country; the mountainous west and north are generally cooler
than the lower-lying east.
There are two rainy seasons in the year. The first runs from February to
June and the second from September to December. These are separated
by two dry seasons: the major one from June to September, during which
there is often no rain at all, and a shorter and less severe one from
December to February. Rainfall varies geographically, with the west
and northwest of the country receiving more precipitation annually
than the east and southeast.
Mountains dominate central and western Rwanda. These mountains are
part of the Albertine Rift Mountains that flank the Albertine branch of
theEast African Rift. This branch runs from north to south along Rwanda’s
western border. The highest peaks are found in the Virunga volcano
chain in the northwest; this includes Mount Karisimbi, Rwanda’s highest
point, at 4,507 metres (14,787 ft).
Rwanda has many lakes, the largest being Lake Kivu. This lake occupies
the floor of the Albertine Rift along most of the length of Rwanda›s
western border, and with a maximum depth of 480 metres (1,575 ft), it
is one of the twenty deepest lakes in the world. Other sizeable lakes
include Burera, Ruhondo, Muhazi, Rweru, and Ihema, the last being the
largest of a string of lakes in the eastern plains of Akagera National
Park. Therefore, it is very important to care for our environment because
as some the features show without it there is no life as discussed in the
following paragraphs
No trees, no forests! No forests, no rainfall! No rainfall, no water! No
water, no power! No power, no industry! No industry, no jobs! No jobs, no
money! No jobs, no money! No money, no food! No food, no life!
Perceptibly, forests are very important as this sequence show. Destroying
forests has serious environmental, economic and social consequences.
Anyone in drought areas should remember that we have suffered
crippling droughts as well as water and power rationing in some parts
of Africa. Recovering from these disasters takes a long time.
In counties which heavily depend on agricultural produce both for local
consumption and for export, rain is very important. Trees attract rain
and we should do everything possible to preserve them. We should even
plant more.
Trees also prevent soil erosion and flooding. Soil erosion carries away the
productive soil while flooding leads to loss of life and property.
In Kenya’s Western province, Busia district, Budalangi constituency
and its surroundings, the inhabitants cannot build permanent homes
because they know in the month of April they have to move to high
grounds because of flooding that causes loss of property and even life.
In addition, forests provide catchment areas for some largest rivers
and lakes. From these rivers and lakes, we get water for domestic use,
irrigation and we can also get sea food. On the rivers are dams from
which electricity is tapped or generated.
For example, River Nile is a major hydro power generation that serves
Uganda, Kenya and Rwanda. Did you know that Lake Victoria has its
major tributaries in Kenya and these tributaries emanate from the Mau
forest?
Due to human activities in the forest, the tributaries are reducing water.
As a result Lake Victoria on the Kenyan side is reducing in water flow
and if the situation is not checked, this will affect the people of Egypt who
rely entirely on irrigation from River Nile whose source is Lake Victoria.
Moreover, forests play a significant role in our atmosphere. By absorbing
carbon dioxide from the air, they act as a filter thus leaving our air
fresh and clean. Forests are also the most important defence against
climatic changes such as global warming. If we destroy the forests the
chain is broken as well as our lives.
https://www.newtimes.co.rw/section/read/41355
Comprehension questions
1. Why does Rwanda have a temperate tropical highland climate
with lower temperatures?
2. Give and explain the rain seasons we have in a year.
3. What is the importance of some environment features mentioned
in the passage?
4. Which countries are served by hydro power generation from
River Nile?
5. What are the lakes do we have in our country and why are they
important?
6. Which daily temperature do we have in Kigali city as mentioned
in the passage?
7.2.2. Application activity Vocabulary and composition writing
1. Explain the following words as they are used in the passage
a. Temperatures
b. crippling
c. droughts
d. precipitation
e. rainfall
f. constituency
g. floor
h. catchment
i. filter
j. carbon dioxide
2. Write a composition talking about the environment features of your
district. Read guidelines of writing an essay in unit five of this book.
7.3. Describing different ways of protecting environment
7.3.1. Learning activity: Observing pictures and Reading
1. What do you see in Fig.1 and what do you think the person
people in Fig.2 is doing?
2. Which strategies can we use to protect our environment?
3. Why is important to protect our environment?
4. Suggest some pieces of advice to people who only care for
their businesses by building big industries and other related
harmful activities.
B. Reading and exploitation of texts
Read the text below and answer questions given.
• Text 1: Protect your environment
Many people say there is a need to protect the environment, but do not
really make any effort to do anything about it. Are you one of these
people? What can we do to encourage people to take action to protect the
environment?
Most people are increasingly aware of the need to protect our environment.
Despite this, not many of us are really taking steps to reduce our impact
on the planet. In this text, I will suggest some steps each of us can take
and some ways to motivate others to do the same.
Many environmental problems seem so big that only governments, local
authorities or big companies can deal with them. One example is global
warming. We need government action to reduce emissions from coal
and oil burning power stations and to develop safer sources of power.
These require tough regulations and huge investment. The loss of forests
and other habitat is another problem. How can we as individuals stop
the destruction of the Amazon or Indonesian rain forests? Yet another
example is waste. When people live in cities, other ways may be recycling,
picking up trash, no polluting and decrease pollution overall, saving
animal habitats and so much more.
We should care for the environment because it’s our real home, we live in
it and we don’t want a nasty living of trash everywhere with stenches,
also animals can die from our trashes such in beaches, they can get stuck
in the can plastics. We need to recycle because recycling takes trash and
processes it in some way to make a useful product. Composting falls
into this category. Glass, plastics, paper, steel, and cardboard are other
materials that may be recycled. The added benefit of compost is that
it can be done in your own backyard. We still need to recycle all the
plastic that we use because it gets melted and reused again for more
supply for our needs.
When we don’t recycle, we have less plastic reusing than before and cause
a lot more money and man labor time to recycle it for us in the landfills.
Also, most of it gets burned to dispose of it all because we have no room
for all the landfills and they cost too much to have. Really, we should all
try to reuse before recycling but either works just fine. So, when we
reuse our belongings like finding alternate uses for trash rather than
disposal.
Share unused portions with neighbours or charities. Donate books
to the library; give old clothing to charity, etc. Now we also need to
reduce which is includes reducing the amount of total waste by steps
such as buying only the amount you need, persuading manufacturers to
reduce the amount of packaging they use. It also includes steps such as
mowing your lawn with a mulching mower and leaving the clippings on
the grass. “Waste” is never generated. So, we don’t want to buy too much
of anything for ourselves everyone needs the same things such as water
bottles, plastic bags, and much more. And for mountainous places, it is
important that people can make terraces, planting also some trees which
may protect the soil.
In conclusion, our choices, however small, do have a real impact. If each
of us made took two or three simple steps to live more simply, imagine
the positive effect on the planet!
http://writefix.com/?p=183
Comprehension questions
1. Which problems did the writer say that they can be dealt with
government?
2. What are the strategies identified by the writer about
environmental protection?
3. Give reasons why the environment must be protected.
4. Which materials do we need to recycle in our environment?
5. How can we protect the soil from high mounts?
• Text 2. A poem on environmental protection
Read the following poem and answer questions
We spoil our Earth
Is it really worth?
Polluting the air
is that really fair?
Can Smoke and Dust
Turn Earth into Hearth?
Clean the Air
Show that we care
Secure our future
Say Cheese!
Plant more trees
For Earth to Breathe
Plants and Animals
Love them all
Be generous
Live life tall
Conserve water
Be a nice daughter
Harvest sunlight
For a life that is bright
Plastic may be cool
But don’t be a fool
It will make you ill
Tell the whole school
Recycle everything
Don’t waste anything
If you want no tension
Go for environment protection
By KaarviKhullar
• Comprehension questions
1. Which strategies did the poet mention so as to protect our
environment?
2. Why do you think that poet advised us not to be fool though
plastic is cool?
3. What can a person do if he/she wants no tension?
4. Provide the message given by the poet to schools.
5. Explain the following words as they are used in the poem. Use
dictionary
f. Global warming
g. Pollution
h. Stenches
i. Backyard
j. Portions
k. Charity
l. Recycling
7.3.2. Application activities Debate and composition writing
1. Debate the following topic or motion: Read the guidelines on
how to conduct a debate in unit five of this book. “Human
activities have brought more harm than good on our Earth”.
2. Write two paragraphs describing different ways of protecting
environment. Read the guidelines on writing a paragraph in
unit five of this book
7.3.3. Language structure: Use of expressions of purpose
1. Read the following paragraphs and identify expressions of purpose used
The trees’ roots suck water deep from under the ground to as low as 200
feet. They hold the soil together so that erosion is prevented. They absorb
rain during rainy days in order to help plants grow well.
Mary lives in Gakenke District which is a mountainous area. Last
year, she planted different trees so as to protect the soil. However, her
neighbours did not do the same and affected her soil later. The local
leaders sensitize every person to make terraces and some irrigation so
that they could not get affected by soil erosion again.
Last week, Land manager at sector level visited them and said that in
order to avoid soil erosion people should also get water from their houses
in addition to other methods used.
• Notes
Expressions of purpose: to, in order to and so as to
a. In order to
We can use ‘in order to’ or ‘so as to’ instead of ‘to + infinitive’. This just
makes it a bit clearer that we are talking about goals or intentions and
it’s also a bit more formal. It doesn’t change the meaning.
• I went to London in order to study Environmental education.
• I went to London so as to study Environmental education.
Use to, so as to, and in order to express purpose in the affirmative
form
Examples:
• He is looking for a part time job to save some pocket money.
• She wakes up early in order to be on time to work.
• They visited him so as to offer their condolences for the death of his
wife.
Use so as not to and in order not to express purpose in the negative form.
Examples:
• They woke up early in order not to be late.
• She exercises regularly so as not to get fat.
• He helped the new policewoman so as not to fail in her first mission.
b. Purpose with so that
You can also express purpose with so that. In this case you generally
need to use a modal
Examples:
• He turned down the music so thathe wouldn›t disturb the neighbours.
• He got a visa so that he can travel to the USA.
• He decided to stay in England for a while so that he could practice
his English language
Exercises
A: Choose the correct expression of purpose
1. Concentrate on your exercise … make any mistakes.
a. So as not to
b. to
c. So that
2. You have to wake up … be on time.
a. To
b. In order not to
c. So that
3. You have to register … participate in the forum.
a. In order to
b. So as not to
c. So that
4. She left work early … be at home when he arrives.
a. So as not to
b. To
c. So that
5. Ships carry life boats … the crew can escape when the ship sinks.
a. So as not to
b. To
c. So that
6. These men risk their lives-… we may live more safely.
a. to
b. in order not to
c. so that
B: Using expression of purpose, write a paragraph talking about
the role of physical environment in socio-economic sector.
7.1. End unit assessment
A. Use a dictionary and thesaurus to look up the missing pronunciation
of the words/phrases in the table below. Copy the table into your
book and fill in the blank spaces and practice reading them.
B. Suppose that you are appointed to be trainer in a given district
and the training agenda is all about environment conservation
and sustainability. The following are issues to be addressed in the
training.
a. Strategies to keep different materials lying around in the
community.
b. Ways to protect our soil from erosion.
c. Challenge of deforestation in the community.
d. A problem of water from houses
Write an essay describing how you will address the above issues to be
presented to the Land manager. Make sure you pay attention to the use
of expression of purpose in your writing. Words limit (300 words).
C. Rewrite the sentences below using to, in order not to, so that…
a. I sent her a bunch of flowers because I wanted to make it up with
her.
b. I entered Mr Green’s office because I wished to talk to him about
environment.
c. I came back because I had to take care of my parents.
d. She winked at me because she wanted to let me know that she
was joking.
e. I have come because I’d like to give you a piece of advice on
environmental protection.
A. D. Match the beginnings of the sentences to the correct endings