🏝 🏝Causes of Soil Degradation🏝 🏝
Welcome 👦👧boys and girls to another class. Today, we will be going on an adventure where we will be exploring the topic: The Causes of Soil Degradation. Read all given information, watch the video clips and do the activities below.
What is soil degradation?
Soil degradation means the soil becomes worse in quality — it loses its nutrients, its structure, or its ability to grow plants. In simple words, healthy soil turns into poor soil that cannot support life well.
What causes soil degradation?
2.
Overgrazing
– too many animals eat all the grass, so soil has no cover.
3.
Overcropping / poor farming –
growing crops on the
same land again and again takes out nutrients.
4.
Erosion by wind and water
– the topsoil (the best layer) is blown or washed away.
5.
Use of too many chemicals
– fertilizers and pesticides can harm soil life.
6.
Flooding and poor drainage
– too much water damages soil structure.
7.
Drought
– too little water dries out the soil.
8.
Pollution
– trash, oil, and waste poison the soil.
9.
Construction and mining
– digging and building destroy the soil.
10.
Burning vegetation –
fires kill the tiny living things in the soil.
👦👧Boys and girls let us watch the video clips on the causes of soil degradation👇
Click and watch the video Click and watch the video
👦👧Now that we have learnt about the uses of the environment. Boys and girls, it's activities time!!!
Task 1: Answer all
questions.
1.
What does soil degradation mean?
a) Soil becomes better
b) Soil becomes worse in quality
c) Soil turns into rock
d) Soil becomes wetter
2.
Which layer of soil is most lost during
erosion?
a) Bedrock
b) Subsoil
c) Topsoil
d) Clay layer
3.
Cutting down forests is called:
a) Farming
b) Deforestation
c) Irrigation
d) Conservation
4.
Which animal activity can cause soil
degradation?
a) Bees making honey
b) Overgrazing by too many animals
c) Birds building nests
d) Worms digging tunnels
5.
Which of these is NOT a cause of soil
degradation?
a) Overgrazing
b) Planting cover crops
c) Deforestation
d) Pollution
6.
What happens to soil when it is
overcropped?
a) It gets more nutrients
b) It loses nutrients
c) It turns into sand
d) It becomes darker
7.
Which force can carry away topsoil?
a) Wind and water
b) Sunlight only
c) Moonlight
d) Sound
8.
Too much chemical fertilizer can:
a) Help soil life only
b) Harm soil life
c) Make soil waterproof
d) Cool the soil
9.
What is overgrazing?
a) Planting too many trees
b) Too many animals eating grass cover
c) Watering plants too much
d) Growing too many vegetables
10.
Poor drainage in soil can cause:
a) Drought
b) Waterlogging and damage to soil structure
c) More nutrients
d) Faster plant growth always
11.
Which of these helps protect soil?
a) Burning grass
b) Leaving soil bare
c) Planting trees and grass cover
d) Digging up all plants
12.
Drought causes soil degradation because:
a) Soil gets too wet
b) Soil dries out and blows away easily
c) Soil becomes colder
d) Soil turns blue
13.
Pollution of soil is caused by:
a) Clean water
b) Trash, oil, and waste
c) Earthworms
d) Rain only
14.
Mining and construction damage soil by:
a) Adding nutrients
b) Removing and compacting soil
c) Watering it
d) Cooling it
15.
Burning vegetation harms soil because:
a) It kills tiny living things in the soil
b) It makes soil wet
c) It adds too much water
d) It makes soil colder
16.
Why is topsoil important?
a) It is full of nutrients for plants
b) It is the deepest layer
c) It is made of rock
d) It has no living things
17.
Which practice can help prevent soil
degradation?
a) Overgrazing
b) Crop rotation
c) Deforestation
d) Dumping waste
18.
Soil erosion by wind happens mostly when:
a) Soil is covered by grass
b) Soil is bare and dry
c) Soil is wet and muddy
d) Soil is frozen
19.
What can floods do to soil?
a) Improve its structure always
b) Wash away topsoil and damage structure
c) Add no change
d) Make it rock
20.
The best way to reduce soil degradation is
to:
a) Remove all plants
b) Protect soil with plants and good farming practices
c) Use more chemicals
d) Build more roads
Task 2: Answer all questions
given in this section.
Scenario 1:
A village has many goats. The goats eat all the grass on the hillside. When it
rains, the soil washes down the hill.
Question: What is causing soil degradation here? What could the
villagers do to fix it?
Scenario 2:
A farmer grows corn on the same field every year. Each year the corn gets
smaller. He uses more fertilizer, but it doesn't help much.
Question: Why is the soil getting worse? What farming practice would you
suggest and why?
Scenario 3:
A company cuts down a forest to build houses. After a year, the nearby river is
muddy and the land is dry and cracked.
Question: How did cutting the trees affect the soil? What could the
company have done differently?
Scenario 4:
Two farms are side by side. Farm A leaves soil bare after harvest. Farm B
plants grass and trees around its fields. A strong wind blows for a week.
Question: Which farm's soil will be more damaged and why? What does this
teach us about protecting soil?
Task 3: Underline true or false
for each statement.
1.
Soil degradation means soil becomes
healthier. (true/false)
2.
Topsoil is the most important layer for
growing plants. (false/true)
3.
Deforestation can lead to soil erosion. (true/false)
4.
Overgrazing helps protect soil. (false/true)
5.
Planting trees and grass can help prevent
soil degradation. (false/true)
6.
Too many chemicals can harm soil life. (true/false)
7.
Soil degradation only happens in deserts. (false/false)
8.
Wind and water can carry away topsoil. (true/false)
Task 4: Answer all questions
in this section.
1.
In your own words, explain what soil
degradation is and why it is a problem for farmers.
2.
List three causes of soil degradation and
describe how each one damages the soil.
3.
Imagine you are a farmer. Describe two
things you would do to protect your soil and explain why they work.
4.
How can people in your community help
reduce soil degradation? Give two examples.
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