2.9. Exercises

1. Answer the following questions.

(i) Which are the two main climatic factors responsible for soil formation?

(ii) Write any two reasons for land degradation today.

(iii) Why is land considered an important resource?

(iv) Name any two steps that government has taken to conserve plants and animals.

(v) Suggest three ways to conserve water.

This section lists five questions that encourage students to think critically about land, soil, water conservation, and the impact of human activities on the environment. Each question targets specific knowledge areas, such as climatic factors that influence soil, reasons for land degradation, the importance of land, governmental conservation efforts, and water conservation strategies.

Imagine if your garden was losing nutrients because of constant overuse of the same soil without giving it a break. This is similar to land degradation where excessive farming can hurt the soil's ability to support crops.

2. Tick the correct answer.

(i) Which one of the following is NOT a factor of soil formation? (a) time (b) soil texture (c) organic matter

(ii) Which one of the following methods is most appropriate to check soil erosion on steep slopes? (a) shelter belts (b) mulching (c) terrace cultivation

(iii) Which one of the following is NOT in favour of the conservation of nature? (a) switch off the bulb when not in use (b) close the tap immediately after using (c) dispose polypacks after shopping.

In this section, students are presented with multiple choice questions that test their understanding of soil formation and conservation methods. The questions direct attention to important concepts like the impact of human behavior on nature and effective strategies for soil erosion control.

Think of this like playing a game where you have to choose the best power-up to succeed. Each option given here represents a choice that influences how well we can protect our environment. Choosing the wrong answer could be akin to wasting an opportunity to really help the Earth.

3. Match the followings:

(i) Land use (a) prevent soil erosion (ii) Humus (b) narrow zone of contact between the lithosphere, hydrosphere and atmosphere ( iii) Rock dams (c) productive use of land (iv) Biosphere (d) organic matter deposited on top soil (e) contour ploughing

This portion exercises the link between definitions and terms, enhancing memory retention. Students match terms like 'Land use' and 'Humus' to their meanings or related concepts, which helps deepen understanding of how these terms relate to each other.

Imagine you have a box of puzzle pieces. Matching terms is like putting together those pieces to create a full picture. Each term is a piece that, when correctly matched, helps you understand the bigger concept of ecology.

4. State whether the given statement is true or false. If true, write the reasons.

(i) Ganga–Brahmaputra plain of India is an overpopulated region. (ii) Water availability per person in India is declining. (iii) Rows of trees planted in the coastal areas to check the wind movement is called intercropping. (iv) Human interference and changes of climate can maintain the ecosystem.

In this section, students are asked to assess statements as true or false, and to justify their answers. This not only reinforces their knowledge but encourages analytical thinking about environmental issues and facts.

Think of this like a game where you’re a detective trying to figure out what’s true or false about a case. Each statement is a clue that requires careful reasoning and justification, helping you to analyze environmental issues critically.

5. Activity

Discuss some more reasons which are responsible for changes of land use pattern. Has your place undergone any change in the land use pattern in recent years?

Find out from your parents and elderly people. You can conduct an interview by asking the following questions.

Place When your grand parents were in their 30’s When your parent’s were in their 30’s Why do you think this is happening? Are common areas and open spaces disappearing? Rural Number of cattle and poultry owned Number of trees and ponds in the village Main occupation of the head of the family Urban Number of cars owned Number of rooms in the house Number of metalled roads Number of flyovers in the city Number of parks and playgrounds Based on the table you have just completed, draw a picture of land use patterns that you foresee in your neighbourhood after 20 years. Why do you think that land use patterns change over the years?

This exercise encourages students to engage with community history and personal observation of changes in land use. By interviewing elders and collecting data, they can identify trends and predictions about land use in their areas, fostering a real-time connection to ecological changes.

This is like being an anthropologist studying your own neighborhood. By gathering stories and information from the past, you're making a map of how your community has changed and how it might change in the future, just like research teams study ancient civilizations to understand human progress.

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