true or false
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a. all natural resources can be used directly.
b. tidal energy is a renewable source of energy.
c. water is an example of a localised resource.
d. every resource has its own utility.
e. contribution of a single person towards conservation does not make a difference.
Answers
Answer:
All things that are useful to us are called resources. Air, water, land, soil, forest etc are all resources. Resources are useful raw materials that we get from nature. These are naturally occurring materials. They are useful for us in many ways, and we keep developing new ways to use them or convert them into useful things. Let us look at the classification of resources.
Explanation:
Classification of Resources
Natural resources are valuable to us. The broadest classification of resources is done on the basis of their replenishing ability. Let us take a look, at these two classifications.
Renewable resources
Non Renewable resources
Renewable resources
When talking about classification of resources, we will first see the renewable resources. Renewable resources are those resources that can be replenished or renewed naturally over time. Air, water, wind, solar energy etc are all renewable resources. Renewable resources can be easily renewed by nature.
Browse more Topics under What If It Finishes
Materials – Fuel Conservation Ways
Reason for Finishing of Resources
1. Solar energy
Sun is a big source of energy. The energy that we get from the Sun is called solar energy. All the natural phenomenon like the flowing of wind, water cycle, photosynthesis etc are possible only due to solar energy. Now a day, solar energy is being used to cook food with the help of solar cookers, heat water, light streets, pump water for irrigating fields etc.
Read the Reason for Finishing of Resources here.
2. Hydro-Energy
Water is important natural resources. All living organisms need water to live. Humans need water for many purposes such as drinking, cleaning, cooking and for growing crops. Water flowing into the river or water stored in a dam is sources of hydro energy. The Simple method to use hydro energy is to convert it into electrical energy.
3. Wind energy
Winds are constantly being created in nature. The windmill is a source of electrical energy. These windmills are generally established only at places where most of the days in a year experience strong winds. The energy from this wind is used for grinding grain, pumping water and to produce electricity. In India, many windmills have been set up in different places such as Tamil Nadu, Maharashtra, Rajasthan, Kerala, West Bengal and Gujarat.
4. Biogas
Biogas is a type of fuel which is a mixture of gases such as methane, carbon dioxide, hydrogen etc which is obtained by decomposition of animal and plant wastes like animal dung, with the help of micro-organisms in the presence of water. It is used as fuel in gas stove especially in rural areas.
5. Wood
Wood is an ancient and traditional source of energy. It is mainly a mixture of many carbohydrate compounds. Wood is used to cook food. It leads to deforestation and pollutes air also. In India, still in many villages, they use wood chullas to cook food every day. While having ill effects on the environment, it is also harmful to human health
Answer:
option B is correct
Explanation:
tidal energy is a renewable energy powered by the natural rise and fall of ocean tides and currents. some of these technologies include turbines and paddles. tidal energy is produced by the surge of ocean waters during the rise and fall of tides