Green Skills Class 9 Question Answers
Green Skills Class 9 Question Answers
A. Multiple choice questions
Read the questions carefully and circle the letter (a), (b), (c) or (d) that best answers the question.
Q1. 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
Ans. (a) Chemical pollution due to fertilisers
Q2. 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
Ans. (a), (b) and (c)
Q3. A steel factory burns 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
Ans. (a) and (c)
B. Short answer questions
Q1. What are the five sources of energy available to us? Give two examples of each source?
Ans. Five sources of energy available to us are:
Coal
Coal is one of the cheapest sources of fuel.It is used in power houses, factories and houses for cooking and heating
Petroleum
It includes petrol, diesel and mineral oils. It is used to run motor vehicles, furnaces and power-houses.
Wind
The energy from the force of the wind is wind energy. This energy can be used for work as grinding grain, pumping water, etc.
Biomass
Energy can be produced by wastes from plants and animals. It can be used for any heating purpose, such as cooking
Sun
Sun’s energy can be used to generate electricity. These are used in calculators, street lamps, and even in room heaters and water heaters
Q2. What are the sources of pollution?
Ans. Household combustion devices, motor vehicles, industries and forest fires are common sources of air pollution.
Garbage, Mining and Constructions are the common sources of land pollution.
Q3. Classify the following under the three respective categories of natural resources:
Air, iron, sand, petroleum, wind, clay, fish, forest, gold, pearls
Ans.
| Inexhaustible | Renewable | Non- renewable |
| Air | Fish | Petroleum |
| Wind | Forest | Sand |
| Pearls | Clay | |
| Gold | ||
| Iron |
A. Multiple choice questions
Read the questions carefully and circle the letter (a),(b), (c) or (d) that best answers the question.
Q1. 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
Ans. (a) Saving energy and (c) Using energy efficiently
Q2. Which of the following are non-renewable resources? (Choose all options that apply)
(a) Coal
(b) Diesel
(c) Sun
(d) Water
Ans. (a) Coal and (b) Diesel
Q3. Which of the following is an example of renewable resources?
(a) Coal
(b) Solar Energy
(c) CNG
(d) Petroleum
Ans. (b) Solar Energy
B. Short answer questions
Q1. Write any three actions which you can take to conserve energy.
Ans. Three actions which we can take to conserve energy are: (Write any three)
- Using natural ventilation or fans in place of air conditioners.
- Using public transport buses and cycles instead of car.
- Segregating waste before throwing, so that the biodegradable waste can be harvested.
- Reducing water use during bathing by using water filled in a bucket instead of shower.
- Use Organic (natural and chemical free) food.
Q2. Describe any three methods of water conservation.
Ans. Three methods of water conservation are:
1. Growing vegetation in the catchment areas, which will hold water in the soil and allow it to percolate into deeper layers and contribute to formation of ground water.
2. Constructing dams and reservoirs to regulate supply of water to the fields, as well as to enable generation of hydroelectricity
3. Sewage should be treated and only the clear water should be released into the rivers..
Q3. What is the purpose of soil conservation?
Ans. Soil conservation helps to check soil erosion and improving soil fertility by adopting various methods like
- Maintenance of soil fertility.
- Control on grazing
- Terracing
- Contour ploughing
Q4. State any three ways by which we can save energy.
Ans. Three ways by which we can save energy are:
- Switch off lights, fans, TV and other electrical items, when not in use.
- Use tube lights and energy efficient bulbs that save energy rather than bulbs.
- Use pressure cooker to save energy required for cooking.
A. Multiple choice question
Read the questions carefully and circle the letter (a),(b), (c) or (d) that best answers the question.
Q1. 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
Ans. (a) uses less resources
B. Short answer questions
Q1. What are green skills?
Ans. Green skills are the knowledge, abilities and attitude which are required to develop and support a sustainable environment.
Q2. Give two examples of green skills that you can start learning from now.
Ans. Two examples of green skills are: (Write any two)
- Rain water harvesting
- Waste management
- Reducing Pollution
- Use of Solar Energy
Disclaimer : I tried to give you the correct and simple Green Skills Class 9 Question Answers , but if you feel that there is/are mistakes in the answers of Green Skills Class 9 Question Answers given above, you can directly contact me at csiplearninghub@gmail.com. NCERT Book and Study material available on CBSE official website are used as a reference to create above Green Skills Class 9 Question Answers. All the answers are taken from CBSE Study material.
Important links of Class IX (IT-402)-Employability Skills
NOTES
Unit 4: Entrepreneurial Skills
MCQ
Unit 2: Self Management Skills
Unit 4: Entrepreneurial Skills
BOOK SOLUTIONS
Unit 2: Self Management Skills
Unit 4: Entrepreneurial Skills
Unit 5: Green Skills
Important links of Class IX (IT-402)
Unit 1 : Introduction to IT–ITeS Industry – BOOK SOLUTIONS
Unit 1 : Introduction to IT–ITeS Industry – NOTES
Unit 1 : Introduction to IT-ITeS – MCQ
Unit 2 : Data Entry and Keyboarding Skills – BOOK SOLUTIONS
Unit 2 : Data Entry and Keyboarding Skills – MCQ
Unit 3 : Digital Documentation – NOTES
Unit 3 : Digital Documentation – BOOK SOLUTIONS
Unit 3 : Digital Documentation – MCQ
Unit 4 : Electronic Spreadsheet – BOOK SOLUTIONS
Unit 4 : Electronic Spreadsheet – MCQ
Unit 5 : Digital Presentation – MCQ
Important links of Class X (IT – 402)
UNIT 1: DIGITAL DOCUMENTATION (ADVANCED) – MCQ
UNIT-2: ELECTRONIC SPREADSHEET (ADVANCED) – MCQ
UNIT-3 RELATIONAL DATABASE MANAGEMENT SYSTEMS (BASIC) – MCQ
UNIT-4 WEB APPLICATIONS AND SECURITY