Information Technology
Class-10
Unit- 5 Green Skills-II
A. Multiple Choice Questions:
1. ____________ is caused when natural or man-made disturbance disrupts the natural balance of an ecosystem.
a. Damage b. Ecological imbalance c. Natural disaster d. Pollution
Answer: Ecological imbalance
2. The primary objective of sustainable development is:
a. Economic growth b. Environmental protection c. Social inclusion d. All of the above
Answer: All of the above
3. Problem related to sustainable development is:
a. Lack of proper implementation of policies
b. Lack of financial resources
c. Conflict between immediate profit and investment towards sustainable technologies.
d. All of the above
Answer: All of the above
4. Almost ________ of the earth is made up of water.
a. 30% b. 3% c. 70% d. 2.5%
Answer: 70%
5. A Green economy is one which is:
a. Low carbon b. Socially inclusive c. Both (a) and (b) d. Neither (a) nor (b)
Answer: Both (a) and (b)
6. According to the concept of sustainable development, the environment and development are ___________ issues.
a. Inseparable b. Separate c. Independent d. None of the above
Answer: Inseparable
7. How many sustainable development goals are given by the United Nations?
a. 18 b. 17 c. 15 d. 20
Answer: 17
8. Choose the option which defines sustainable development.
a. Taking care of future generations
b. Taking care of only ourselves
c. Taking care of ourselves and the future generations.
d. Well-being of all
Answer: Taking care of ourselves and the future generations.
9. Which organisation has made the sustainable development Goals?
a. United nations b. League of nations c. UNICEF d. World Health organisation
Answer: United Nations
B. State T for true or F for false:
1. The ability to provide adequate food and nutrition is a challenge faced by many countries.
Answer: T
2. Urbanization has been contributing to environmental degradation.
Answer: T
3. A green economy reduces environmental risks but does not enable social equity.
Answer: T
4. Non-renewable energy is energy that comes from sources that are naturally replenished.
Answer: T
5. The sustainable development Goals are included in a UN Resolution called the 2030 agenda.
Answer: T
C. Answer the following questions:
1. What is the meaning of sustainable development?
Answer: Sustainable development is the development that satisfies the needs of the present without compromising the capacity of future generations, guaranteeing the balance between economic growth care for the environment and social well being.
Sustainable development is the idea that human societies must live and secure their present needs without compromising the ability of the future generations to meet their own needs.
2. Name and explain four ecological disruptions that are man made.
Answer: Four ecological disruptions are:
Pollution(Air, Water, Soil): Air pollution is responsible for chronic health problems for many people. There are many causes of air pollution, such as industries and factories emitting harmful gases, vehicular traffic in urban areas, increased greenhouse gases, etc.
Deforestation and Soil Erosion: Felling of trees due to increased deforestation results in loss of natural resources as well as loss of protective barrier for topsoil which is a major cause of soil erosion.
Loss of Biodiversity: Loss of biodiversity is a reduction in the variety of plant and animal species (due to extinction of some species of plants and animals). The biodiversity of an area can decrease as a result of urbanization, pollution, poaching and expanding agriculture.
Waste Generation: As per a world bank report, Around the world, waste generation rates are rising.....with rapid population growth and urbanization, annual waste generation is expected to be 3.40 billion tones in 2050.
3. What is e-waste? Why has it assumed importance in recent years?
Answer: E-waste is the waste that is generated from used electronic devices and household appliances which are not fit for their original intended use. With the advancement in technology and increased usage of more gadgets, the e-waste has grown significantly and needs to be addressed.
4. What are the four RS of waste management?
Answer: Good waste management follows the 4 Rs: Reduce, Reuse, Recycle and Recover, as well as avoiding illegal dumping and littering. Did you know that the 4 Rs can help us to find better ways to manage our litter? You can REUSE by finding ways to use things again that you would normally throw away.
5. Name any two ways of conserve each of the following:
a. Air b. Water c. Land d. Energy
Answer: a. Air: A number of actions can be taken to reduce air pollution. They include reducing vehicular emissions by promoting use of cleaner vehicles, use of green fuels and encouragement to use public transport, regulating industrial emissions as they are emitting large amount of pollutants into the air.
b. Water: It is important to reduce wastage of water, improve water management and conservation practices such as rainwater harvesting and waste water treatment, so that there is enough water for the present as well as for the future generations.
c. Land: Conserving land is important for it helps in preserving farms and forests, protecting wildlife habitat and biodiversity, reducing air and water pollution, preventing soil erosion and improving soil quality, reducing the negative impacts of flooding, helping in reduction of greenhouse gases.
d. Energy: It is also important to be responsible energy users. Turning off lights, fans, air conditioners and other gadgets and appliances, using energy efficient light bulbs and appliances.
6. List any four factors causing ecological imbalance.
Answer: Four factors causing ecological imbalance:
1. Pollution: Air pollution is responsible for chronic health problems for many people. There are many causes of air pollution, such as industries and factories emitting harmful gases.
2. Deforestation and soil erosion: Felling of trees due to increased deforestation results in loss of natural resources as well as loss of protective barrier for topsoil which is a major cause of soil erosion.
3. Loss of Biodiversity: Loss of biodiversity is a reduction in the variety of plant and animal species (due to extinction of some species of plants and animals). The biodiversity of an area can decrease as a result of urbanization, pollution, poaching and expanding agriculture.
4. Waste Generation: E-waste is the waste that is generated from used electronic devices and household appliances which are not fit for their original intended use. With the advancement in technology and increased usage of more gadgets, the e-waste has grown significantly and needs to be addressed.
7. List some ways in which we can use resources sensibly.
Answer: Some ways in which we can use resources sensibly:
1. Protecting and living in harmony with the nature.
2. Considering all human beings as equal.
3. Promoting good governance.
4. Using science and technology responsibly.
5. Creating healthy, social and economically viable society.
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