These Class 9 AI Important Questions Chapter 5 Green Skills Class 9 Important Questions and Answers NCERT Solutions Pdf help in building a strong foundation in artificial intelligence.
Green Skills Class 9 Important Questions
Class 9 Green Skills Important Questions
Important Questions of Green Skills Class 9 – Class 9 Green Skills Important Questions
Green Skills Class 9 Very Short Answer Type Questions
Question 1.
What do you mean by ecosystem?
Answer:
An ecosystem is a group of living things that interact as a whole, along with the nonliving elements of their surroundings.
Question 2.
Define deforestation?
Answer:
Deforestation is the removal of a forest or strand of trees so that the land can be used for something other than agriculture, the building of homes or factories, etc.
Question 3.
Define conservation?
Answer:
A natural resource should be properly managed for conservation purposes to avoid exploitation, destruction, or degradation.
Question 4.
What are the sources of renewable energy?
Answer:
Renewable energy comes from sources such as sunlight, wind, sea tides, rain, and geothermal heat.
Question 5.
What is green transport?
Answer:
Green transportation relates to resource conservation, changing the way that transportation is organised, and choosing environmentally friendly modes of transportation.
Question 6.
What are green skills?
Answer:
Green skills are abilities needed to support a sustainable and environmentally friendly economy.
Question 7.
Why are green skills important?
Answer:
Green skills help protect the environment and promote sustainable development.
Question 8.
What is sustainable development?
Answer:
Sustainable development is development that meets present needs without compromising the ability of future generations to meet their own needs.
Question 9.
Name one renewable energy source.
Answer:
Solar energy.
Question 10.
What is the purpose of recycling?
Answer:
Recycling helps reduce waste and conserve natural resources.
Question 11.
Define ‘catbon footprint.’
Answer:
A carbon footprint is the total amount of greenhouse gases produced by human activities.
Question 12.
What is composting?
Answer:
Composting is the process of decomposing organic waste into nutrient-rich soil.
Question 13.
Name one benefit of using public transportation.
Answer:
Reduces air pollution.
Question 14.
What does ‘reduce, reuse, recycle’ mean?
Answer:
It’s a waste management strategy to minimize waste and conserve resources.
Question 15.
What is biodiversity?
Answer:
Biodiversity is the variety of living organisms in a particular habitat or ecosystem.
Question 16.
Name one effect of deforestation.
Answer:
Loss of habitat for wildlife.
Question 17.
What is an ecosystem?
Answer:
An ecosystem is a community of living organisms interacting with their environment.
Question 18.
What is the role of trees in combating climate change?
Answer:
Trees absorb carbon dioxide and release oxygen, reducing greenhouse gases.
Question 19.
Define ‘greenhouse effect.’
Answer:
The greenhouse effect is the trapping of heat in the Earth’s atmosphere by greenhouse gases.
Question 20.
What is renewable energy?
Answer:
Renewable energy is energy from sources that are naturally replenished, like wind and solar power.
Question 21.
Name one practice to conserve water.
Answer:
Fixing leaks.
Question 22.
What is the importance of conserving natural resources?
Answer:
Conserving natural resources ensures their availability for future generations.
Question 23.
Define ‘sustainable agriculture.’
Answer:
Sustainable agriculture is farming that meets current food needs without harming the environment.
Question 24.
What is an example of a green job?
Answer:
Solar panel installer.
Question 25.
What is the purpose of an environmental impact assessment (EIA)?
Answer:
To evaluate the potential environmental effects of a proposed project.
Green Skills Class 9 Long Answer Type Questions
Question 1.
Discuss the importance of renewable energy sources in sustainable development. Highlight different types of renewable energy sources, their advantages, and their role in reducing environmental impact.
Answer:
Renewable energy sources are vital for sustainable development because they provide clean, abundant, and sustainable energy options that help reduce our dependency on fossil fuels. The use of renewable energy is essential for mitigating climate change, reducing environmental pollution, and promoting energy security.
Importance of Renewable Energy Sources in Sustainable Development:
Environmental Benefits:
Renewable energy sources generate power without producing greenhouse gases or air pollutants. This helps combat climate change and reduces health problems associated with air pollution.
Energy Security:
Unlike fossil fuels, which are finite and often imported, renewable energy sources such as wind, solar, and hydropower are abundant and locally available. This reduces dependency on imported fuels and enhances national energy security.
Economic Growth:
The renewable energy sector creates numerous jobs in manufacturing, installation, and maintenance. It stimulates economic growth by promoting technological innovation and reducing energy costs in the long run.
Resource Conservation:
Utilizing renewable energy helps conserve finite natural resources like coal, oil, and natural gas, ensuring that they are available for future generations.
Types of Renewable Energy Sources:
Solar Energy:
- Solar energy is harnessed from the sun using solar panels and photovoltaic cells. It is one of the most abundant and versatile sources of renewable energy.
- Advantages: Reduces electricity bills, low maintenance costs, and suitable for remote areas.
Wind Energy:
- Wind energy is generated by converting wind currents into electricity using wind turbines. It is an efficient and cost-effective renewable energy source.
- Advantages: Low operational costs, scalable from small to large installations, and reduces greenhouse gas emissions.
Hydropower:
- Hydropower involves generating electricity by using the energy of flowing water. It is one of the oldest and most widely used renewable energy sources.
- Advantages: Provides a consistent and reliable power supply, low operational costs, and supports water management practices.
Biomass Energy:
- Biomass energy is derived from organic materials such as plant and animal waste. It can be used for heating, electricity generation, and as biofuels for transportation.
- Advantages: Reduces waste in landfills, promotes agricultural and forestry management, arid is carbon-neutral when managed sustainably.
Geothermal Energy:
- Geothermal energy is produced by harnessing heat from the Earth’s core. It can be used for heating and electricity generation.
- Advantages: Provides a stable and continuous power supply, low emissions, and small land footprint.
Role in Reducing Environmental Impact:
Reducing Greenhouse Gas Emissions:
Renewable energy sources produce little to no greenhouse gases compared to fossil fuels. This helps reduce the overall carbon footprint and mitigate global warming.
Decreasing Air Pollution:
The use of renewable energy reduces the release of pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter, which are harmful to human health and the environment.
Conserving Water Resources:
Many renewable energy technologies, such as wind and solar, require minimal water for operation, unlike fossil fuel power plants that consume vast amounts of water for cooling.
Reducing Habitat Destruction:
Renewable energy projects can be designed and implemented in ways that minimize their impact on wildlife and natural habitats, unlike fossil fuel extraction which often leads to significant environmental degradation.
Conclusion:
The transition to renewable energy sources is crucial for achieving sustainable development. By harnessing the power of the sun, wind, water, biomass, and geothermal energy, we can create a cleaner, healthier, and more sustainable future. The shift towards renewable energy not only addresses environmental challenges but also drives economic growth, ensures energy security, and promotes the well-being of communities worldwide. As technology advances and costs continue to decline, the adoption of renewable energy will become increasingly feasible and beneficial for all.
Case-Based Questions:
Question 1.
Ramesh’s mother always advises him to buy products in bulk quantity instead of small quantity and many times. Also she focuses on using the same thing repeatedly. Whenever she goes outside for shopping she always carries for own stitched cloth bags. What do you think. She is taking a step towards saving out environments.
Answer:
Yes, she is focusing on reduce technique of waste management for the following reasons. Buying bulk quantities thing altogether reduces packaging and transportations.
Shopping bags made up of cloths can be reuse for second time of shopping also.
Question 2.
In a certain campaigning Government enforces on to use plastic products repeatedly in that directions a NGO made awareness programmes to use two litres plastic coke bottles for planting plants, By cutting the bottle after use. Do you think its endeavouring step of that NGO?
Answer:
- Yes really its endeavouring step as everyday many plastic bottles are just through into the garbage. This way pupil will be encouraged to buy products made up of recycle material.
- Pupil will be aware about the hazardous of plastic materials into our environments.
Question 3.
Simran does not understand Green economy and its helpfulness in our society. Help her in understanding he concepts. Green economy focuses on :
Answer:
- Well-being and prosperity for all individuals through offering quality education, respectable living conditions, and employment.
- Supporting social justice and human rights, particularly for minorities and those . with less opportunity.
- Fostering the protection, restoration, and investment of nature within its limits. It guards natural ecosystems and biodiversity.
- Fostering prosperity for sustainable production and consumption within the parameters of the earth. By bringing prices, subsidies, and incentives into line with the real costs to society, it promotes economic growth.
Question 4.
A small village named EcoVille decided to implement a waste management system to tackle the growing problem of waste disposal. The villagers were facing issues with garbage piling up, leading to health hazards and environmental pollution. The village council organized awareness campaigns to educate the villagers about waste segregation and the importance of recycling. Separate bins for biodegradable and non-biodegradable waste were distributed to each household. Additionally, a composting pit was established for organic waste, and a local recycling unit was set up for plastics and metals. Six months later, the village saw a significant reduction in waste, cleaner surroundings, and improved health among the residents.
Questions:
Question 1.
What were the primary problems faced by EcoVille before the implementation of the waste management system?
Answer:
Primary Problems:
- Garbage piling up
- Health hazards
- Environmental pollution
Question 2.
What steps did the village council take to address the waste management issues?
Answer:
Steps Taken by the Village Council:
- Organized awareness campaigns about waste segregation and recycling
- Distributed separate bins for biodegradable and non-biodegradable waste
- Established a composting pit for organic waste
- Set up a local recycling unit for plastics and metals
Question 3.
Explain the importance of waste segregation in waste management.
Answer:
Importance of Waste Segregation:
- Facilitates efficient recycling and composting
- Reduces the volume of waste sent to landfills
- Minimizes environmental pollution
- Helps in the proper disposal of hazardous materials
Question 4.
How did the composting pit and recycling unit contribute to the village’s waste management system?
Answer:
Contributions of Composting Pit and Recycling Unit:
- Composting pit converted organic waste into valuable compost for agriculture
- Recycling unit processed plastics and metals, reducing the need for raw materials and conserving resources
Question 5.
Discuss the impact of the new waste management system on the village environment and the health of the villagers.
Answer:
Impact on Village Environment and Health:
- Significant reduction in waste accumulation
- Cleaner surroundings
- Improved air and soil quality
- Reduced incidence of diseases related to waste pollution
- Overall better health and well-being of the villagers
Green Skills Class 9 Notes
- Categorization of Environment- Environment is categorized into two types.
- Natural environment and Human-made environment
- Categories of ecosystem : Aquatic (river, estuary, wetland, lake and pond) and Terrestrial (grasslands, deserts and forests)
- Components of ecosystems-Autotrophs, Heterotrophs/consumers and Non-living matter
- Causes of environmental degradation: Earthquakes, Forest fires, Volcanic eruption and Floods
- Ecological imbalance-The ecosystem gets imbalance by: Volcanic eruptions, Floods, Natural fires, Logging a forest and Overhunting of a species.
- Steps taken to conserve natural resources are: Soil conservation, Water conservation, Food conservation and Forest conservation.