18 Questions
Which of the following is an example of a renewable energy resource?
Wind power
What is the primary characteristic of non-renewable resources?
They cannot be regenerated or replaced
What is the importance of conserving natural resources?
To save enough for future generations
What is the term for resources that can be used continuously and rejuvenated?
Cyclic resources
Which of the following is NOT a type of renewable energy resource?
Mineral oil
What is the main difference between renewable and non-renewable resources?
Renewable resources can be regenerated, while non-renewable resources cannot
What happens to renewable resources when they are exploited?
They can be renewed along with their exploitation
What is the definition of a natural resource?
Any material that can be transformed to become more valuable and useful
What is an example of a renewable resource?
Forests
What is the main difference between renewable and non-renewable resources?
Renewable resources are inexhaustible, while non-renewable resources are limited
What is an example of a renewable form of energy?
Solar energy
What is necessary for a material to be considered a resource?
Appropriate technology to transform it into more valuable goods
What is the purpose of adding ethanol to gasoline?
To increase the fuel's octane rating and improve vehicle emissions
What is the source of cellulosic biomass used for ethanol production?
Non-food sources such as trees and grasses
What is the process by which biodiesel is produced from oils or fats?
Transesterification
What is the source of geothermal energy?
Energy from the formation of the planet and radioactive decay
What is the total capacity of geothermal power available worldwide as of 2019?
13,900 MW
What is the temperature range of most geothermal hot springs in India?
37oC - 90oC
Study Notes
Natural Resources
- Natural resources are materials given to us by nature that can be transformed to become more valuable and useful.
- Examples of natural resources include wood, cotton, metals, water, minerals, forests, wildlife, and human beings.
Classification of Natural Resources
- Based on continuity, natural resources are classified into:
- Renewable Resources
- Non-renewable Resources
- Cyclic Resources
Renewable Resources
- Resources that can be renewed along with their exploitation and are always available for use.
- Examples of renewable resources include:
- Forests (can be maintained through reforestation)
- Solar energy
- Wind energy
- Biomass energy
- Tidal energy
- Hydropower
Non-renewable Resources
- Resources that cannot be regenerated and will eventually deplete.
- Examples of non-renewable resources include:
- Iron ore
- Coal
- Mineral oil
- These resources take thousands of years to form and cannot be easily replaced once used.
Cyclic Resources
- Resources that can be used continuously and cleaned for reuse.
- Example of cyclic resources include:
- Water used in industry and domestic ways can be cleaned and reused.
Importance of Conservation
- It is essential to protect and conserve natural resources and use them judiciously to ensure their availability for future generations.
Types of Energy
- There are three types of energy:
- Non-renewable
- Renewable
- Examples of renewable energy sources include:
- Wind Power
- Water Power
- Ocean energy
- Bio Fuel/Solid Bio Mass
- Geothermal Energy
Geothermal Energy
- Geothermal energy is thermal energy extracted from the Earth's crust.
- It has been used as a source of heat and/or electric power for millennia.
- As of 2019, 13,900 megawatts (MW) of geothermal power was available worldwide.
Test your knowledge on the classification of resources into renewable and non-renewable categories. Learn about the characteristics of each type and how they impact the environment. Identify examples of renewable resources such as wind energy and biomass energy, and non-renewable resources like iron ore and coal.
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