Green Skills Class 9 Questions and Answers

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Green Skills Class 9 Important Questions

Class 9 AI Green Skills Important Questions

Important Questions of Green Skills Class 9 – Class 9 Green Skills Important Questions

Multiple Choice Questions

Question 1.
What are some of the environmental changes caused due to modern methods of agriculture?
(a) Chemical pollution due to fertilisers
(b) Improvement in the environment
(c) Lower air pollution due to crops
(d) Decrease in forest areas
Answer:
(a) Chemical pollution due to fertilisers
(d) Decrease in forest areas

Question 2.
How can we conserve our health and environment?
(Choose all the correct options)
(a) Grow organic crops
(b) Use natural fertilisers
(c) Manage waste water
(d) Use more air conditioning
Answer:
(a) Grow organic crops
(b) Use natural fertilisers
(c) Manage waste water

Question 3.
A steel factory burhs firewood and charcoal for heating and melting the steel? What are the possible effects on the environment?
(Choose all the correct options)
(a) Increase in global temperature
(b) Decrease in global temperature
(c) Increase in air pollution
(d) Decrease in air pollution
Answer:
(a) Increase in global temperature
(c) Increase in air pollution

Question 4.
What does conservation of energy mean? (Choose all options that apply)
(a) Saving energy
(b) Producing energy
(c) Using energy efficiently
(d) Creating energy sources
Answer:
(a) Saving energy
(c) Using energy efficiently

Question 5.
Which of the following are non-renewable resources? (Choose all options that apply)
(a) Coal
(b) Diesel
(c) Sun
(d) Water
Answer:
(a) Coal
(b) Diesel

Question 6.
Which of the following is an example of renewable resources?
(a) Coal
(b) Solar energy
(c) CNG
(d) Petroleum
Answer:
(b) Solar energy

Question 7.
Which of the following options describe a green economy correctly? A green economy
(a) uses less resources
(b) uses more resources
(c) wastes less items
(d) wastes more items
Answer:
(a) uses less resources
(c) wastes less items

Green Skills Class 9 Subjective Type Questions

Question 1.
What are the five sources of energy available to us? Give two examples of each source?
Answer:
Five sources of energy available to us are
(i) Nuclear fusion, e.g. Solar energy (Sun)
(ii) Gravitational energy, e.g. Gravity generated by Earth and Moon
(iii) Nuclear fission, e.g. Nuclear energy
(iv) Energy in the interior of the Earth, e.g. Geothermal energy
(v) Energy stored in chemical bonds, e.g. coal, petrol

Question 2.
What are the sources of pollution?
Answer:
Sources of pollution are as follows:
(i) Excessive use of chemicals in agriculture (like fertilisers, insecticides) affect the alkalinity of the soil causing land pollution.
(ii) Dangerous gases like chlorofluorocarbons or CFCs, methane, carbon dioxide from industrial processes causes air pollution.

Question 3.
Classify the following under the three respective categories of natural resources :
Air, iron, sand, petroleum, wind, clay, fish, forest, gold, pearls

Answer:

Question 4.
Write any three actions which you can take to conserve energy.
Answer:
Three actions that can be taken to conserve energy are as follows:
(a) Switch off lights, fans when not in use.
(b) Use energy efficient bulbs that use less energy.
(c) Travel in a public transport or carpool instead of going alone in a car.

Question 5.
Describe any three methods of water conservation.
Answer:
Three methods of water conservation are as follows:
(a) Growing vegetation in catchment areas to hold in the soil.
(b) Rainwater harvesting to store rainwater.
(c) Prevention of throwing industrial wastes into sources of water.

Question 6.
What is the purpose of soil conservation?
Answer:
The purpose of soil conservation is to maintain soil fertility. Soil may loose its fertility due to soil erosion, heavy use of chemicals in agriculture and deforestation. Soil fertility can be maintained by adding manure, rotation of crops and planting trees.

Question 7.
State any three ways by which we can save energy.
Answer:
The ways to save energy are as follows:
(a) Use pressure cooker to save energy required for cooking.
(b) Using electric items like AC, geyser only when necessary as they use lot of electricity.
(c) Use renewable sources of energy wherever possible like using solar cooker, solar heater etc.

Question 8.
What are green skills?
Answer:
Refer to text on page no. 99 (Green skills).

Question 9.
Give two examples of green skills that you can start learning from now.
Answer:
Two examples of green skills that can be learnt:
(a) To reduce use of non-renewable sources of energy and use renewable sources wherever possible, e.g. to study in daytime use more of natural light instead of tubelight.
(b) To segregate household waste for proper waste management, e.g. keeping two separate dustbins for collection of dry and wet waste.

Green Skills Class 9 Very Short Answer Type Questions

Question 1.
What are the three Rs in waste management, and how do they contribute to environmental conservation?
Answer:
Reduce, Reuse, Recycle-these practices minimize waste generation, conserve resources, and reduce environmental impact.

Question 2.
What is the greenhouse effect, and how does it contribute to global warming?
Answer:
Greenhouse effect traps heat from burning fossil fuels, causing global warming by preventing Earth’s heat escape.

Question 3.
How do pollutants from human activities contribute to environmental pollution?
Answer:
Pollutants, solid, liquid, or gaseous, released by human activities contaminate air, water, and soil, harming the environment.

Question 4.
Why is education considered crucial for saving the environment?
Answer:
Education empowers people with knowledge and skills to make informed choices, fostering responsible environmental stewardship.

Question 5.
What is the primary goal of soil conservation?
Answer:
The primary goal of soil conservation is to prevent soil erosion and enhance soil fertility through various methods.

Question 6.
How can energy conservation contribute to saving fossil fuels?
Answer:
Energy conservation involves efficient use, reducing waste, and can contribute to saving fossil fuels, leading to both environmental and economic benefits.

Question 7.
What does sustainable development aim to achieve?
Answer:
Sustainable development aims to meet present needs without compromising the ability of future generations, balancing economic growth, environmental care, and social well-being.

Question 8.
Why is biodiversity essential for ecosystems?
Answer:
Biodiversity is essential for ecological processes, including nutrient cycling, soil formation, air and water purification, and maintaining balance within ecosystems.

Question 9.
How is a ‘green job’ defined?
Answer:
A ‘green job’ contributes to environmental preservation, sustainability, and includes roles in sectors like agriculture, manufacturing, research, and education focused on eco-friendly practices.

Green Skills Class 9 Short Answer Type Questions

Question 1.
Write three ill-effects of pollution.
Answer:
Pollution of land, air and water is not good for the environment. The ill-effects of pollution are as follows:
1. Land pollution through contamination of soil may cause various diseases in human like dysentry, cholera, typhoid.

2. Air pollution through greenhouse effects causes many changes in climate leading to floods, famines, droughts etc.

3. Water pollution through dumping of industrial wastes makes the water unfit for drinking, kills aquatic life and affects tourism adversely.

Question 2.
How education can help in saving the environment?
Answer:
Education is very important in saving the environment. It helps in three ways:
1. Learning About the Environment Education about the environment helps in acquiring knowledge and understanding of the surroundings and related issues.

2. Learning Through the Environment It helps in establishing direct contact with the environment through observation, learning by doing, exposure to the environment. This helps in developing the skills for efficient use of resources.

3. Learning for the Environment It aims at development of an informed response and responsibility towards the environment. This makes people more aware towards conservation of the environment.

Question 3.
What is sustainable development? Mention two strategies of sustainable development.
Answer:
Sustainable development is defined as the development that meets the needs of the present without compromising the ability of future generation to meet their own needs. It aims to bring economic growth alongwith care for the environment and social well-being.
Strategies of sustainable development are as follows:
1. Scientific management of renewable resources especially bio-resources.
2. Reducing excessive use of non-renewable resources alongwith reusing and recycling of waste materials.

Question 4.
Define Green economy. Explain its two components.
Answer:
Green economy is defined as the one that results in improved human well-being and social equity while significantly reducing environmental risks and ecological scarcities.
Two components of green economy are as follows:
1. Using the land resources to meet the requirement of people without causing damage to the environment.
2. Develop sustainable transport system that will cost less, help more people to move quickly and cause less or no damage to the environment.

Question 5.
How can green jobs be developed in construction and forestry?
Answer:
Green jobs include jobs that help protect the ecosystem and diversity.
In construction the areas in which green jobs can be developed are in planning, design, manufacturing of buildings, lighting appliances etc. Green jobs in this sector are green builders, green design professionals, green workers.

In forestry the areas in which green jobs can be developed are in reforestation, afforestation projects, agroforestry and vertical farming. Green jobs in this sector are of natural scientists.

Green Skills Class 9 Activities

Activity 1

Understanding Environmental Impact and Plastic Usage
Materials required
Pen and Notebook, Internet access for research (optional)

Procedure:

1. Form groups of three students.
2. Research and compile a list of factors (things or actions) that significantly influence the environment.
3. Discuss the impact of plastic on the environment and answer the following questions:
   • Research and explain the process of how plastic is made.
   • Identify and list common plastic articles used in daily – life.
   • Investigate and discuss the environmental effects of plastic usage.
   • Brainstorm and propose practical ways to reduce individual and collective plastic consumption.
   • Explore the life cycle of plastic, from disposal to its environmental impact.
4. Each group presents their findings and insights to the rest of the class.
5. Encourage class-wide discussion and feedback on the presented information.
6. Conclude with a collective reflection on the importance of individual and collective actions in mitigating environmental impact.

Activity 2

Steps to Promote Environmental Conservation
Materials reqúired
Pen, Notebook

Procedure:

1. Utilize the same groups as in the previous activity.
2. Reflect on your daily routine from the moment you wake up to when you go to sleep. Identify actions you can take during this time to contribute to environmental conservation.
3. Write a note detailing the actions you would take at home or at school to accomplish the following objectives:
   • Collecting waste paper and repurposing reusable materials (for crafts, papier-mâché, creating rough books, etc.).
   • Advocating for the use of both sides of paper.
   • Discouraging unnecessary consumption and casual use of paper, pencils, etc.
   • Employing notebooks responsibly and avoiding tearing out pages.
   • Discouraging the use of disposable pens and promoting the use of refillable items.
   • Creating rough pads using blank sheets from old notebooks.

Activity 3

Promoting Sustainable Practices
Materials Required
Pen, notebook, chart paper, colors, crayons, etc.

Procedure:

1. Form groups with four students in each group.
2. Identify and list the various energy and natural resources utilized throughout a typical day, such as transportation fuels, electricity, water, etc.
3. Brainstorm and devise strategies to reduce the consumption of these resources at each step.
4. Create an informative poster on ‘Sustainable Living’. Include short notes on the following topics:
   • Rainwater Harvesting
   • Household Composting
   • Rooftop Gardening
   • Organic Farming
   • Efficient Water Use (e.g., Drip Irrigation)

Encourage students to think holistically about resource conservation and sustainable practices in their daily lives.

Activity 4

Promoting Sustainable Practices

Procedure:

1. Form groups of 3-4 people in each group.
2. Within your group, discuss various sustainable practices and their significance in fostering environmental responsibility.
3. Each group selects a spokesperson to present the identified sustainable practices and their impact to the rest of the class.

Activity 5

Promoting Sustainable Practices
Materials required
Pen, Chart paper, Colors, Crayons, Magazines, Newspapers, Glue

Procedure:

1. Maintain the same group as in the previous activity.
2. Create an informative poster highlighting the importance of adopting sustainable practices. Utilize the key points discussed in your previous conversation.
3. Encourage creativity by incorporating visuals from magazines and newspapers. Cut out relevant images and texts to enhance your poster.
4. Emphasize the significance of a sustainable lifestyle, including aspects such as eco-friendly habits, renewable energy, waste reduction, and conservation of natural resources.
5. Each group member should actively participate in the creation of the poster, expressing their individual understanding of the importance of sustainability.
6. Display the completed posters in the classroom or a common area to raise awareness among peers about the significance of a sustainable and green economy.

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