Give two examples of renewable energy sources.

1 Answer

Answer :

b) The Sun, wind, and tides. 

Related questions

Description : What is a renewable energy source?

Last Answer : Ans: a) A renewable energy source is a natural energy source which can supply energy for millions of years without becoming exhausted. 

Description : What happen to the heat energy that reaches Earth from the sun? 

Last Answer : Ans: The layer of air which surrounds the Earth acts as an insulating layer. Carbon dioxide gas in the atmosphere absorbs the heat from the Sun and keeps it in thereby maintaining a specific temperature for life on Earth.

Description : Where most of the world’s energy does comes from?

Last Answer : Ans: Most of the world’s energy comes from burning fuels. 

Description : Give three uses for oil products. 

Last Answer : Ans: Oil products are used in vehicles, for heating homes and in power stations. 

Description : Give the meaning of the following words a) combustion b) ignition

Last Answer : a) The chemical reaction which takes place when a fuel reacts with oxygen to give out thermal energy (heat) is called combustion. b) The small amount of energy needed to light a fuel is called ignition.

Description : Suggest a good place to establish a wind farm.

Last Answer : Ans: b) A good place to establish a wind farm would be a windy location on land or out at sea. 

Description : What is the wind farm? 

Last Answer : Ans: a) A wind farm has a large number of wind turbines in one place.

Description : What is the main problem with wind power?

Last Answer : Ans: The energy produced by wind is difficult to store, and electricity is only produced when the turbines are rotating. 

Description : Explain how global warming can lead to the flooding of low lying areas.

Last Answer : Global warming will cause the ice caps at the Poles to melt which in turn will cause the sea level to rise, thus causing a change in weather patterns: more flooding will occur in the lowlying parts of the world. 

Description : What is a global warming? 

Last Answer : Ans: a) An increase in the amount of carbon dioxide in the air is increasing the greenhouse effect, which is causing the temperature of the Earth to rise. This is global warming. 

Description : Name one other green house gas.

Last Answer : methane

Description : Explain why carbon dioxide is called a green house gas.

Last Answer : Ans: a) Similar to a greenhouse, carbon dioxide is very good at keeping heat within the Earth’s atmosphere. This is why it is called a greenhouse gas. It has been very useful in making the Earth warm enough for human life to survive.

Description : Name three gases that cause rain to be acidic.

Last Answer : Ans: carbon dioxide, sulphur dioxide, nitrogen dioxide 

Description : Explain how fossil fuel cause air pollution.

Last Answer : Ans: When fossil fuels are burnt they produce harmful substances that cause air pollution and, in turn harm the environment.

Description : Why are gases deposits found on top of oil deposit?

Last Answer : Ans: Gas deposits collect above the oil because they are less dense. 

Description : What does porous mean?

Last Answer : Ans: Porous means something having sponge-like holes through which liquid or gas can seep. 

Description : a) What does crude oil look like? b) Explain why crude oil is a fossil fuel.

Last Answer :  a) Crude oil is thick and black. b) Crude oil is a fossil fuel because it was made from the dead bodies of microscopic plants and animals that once lived in the sea.

Description : Suggest why there are no human fossil in coal.

Last Answer : Ans: There were no human beings living on the Earth at that time. 

Description : What is a fossil fuel?

Last Answer : Ans: A fossil fuel is formed from the remains of living things. Coal, oil, and natural gas are fossil fuels.

Description : List five common fuels that could be used in the home

Last Answer : Ans: coal, natural gas, kerosene oil, wood, charcoal 

Description : Ramesh is a student of standard X. He organized many activities in his school to convey the students about the various advantages and disadvantages of using renewable and non-renewable sources of energy. Many ... of energy. (in) Which two values are reflected in Ramesh's thought and action? -Science

Last Answer : (i) Activities that Ramesh have had assigned for the students are: (a) Hands on projects related to renewable and non-renewable sources of energy. (b) Photograph exhibitions on the topic ... of renewable source of energy. Ramesh’s action: Concern for community advantage and good management.

Description : What is the difference between renewable and non-renewable energy sources?

Last Answer : Answer: Renewable energy sources are those that can be replenished naturally over a relatively short period of time, such as solar, wind, hydro, and geothermal power. Non-renewable energy sources, on ... naturally on a human timescale, such as fossil fuels like coal, oil, and natural gas.

Description : Could one realistically power air travel with renewable energy sources?

Last Answer : answer:Peanut-explosive propelled gliders? I think what we need to consider at least as much as the source of fuels and materials is the scale we’re talking about. Probably not renewable to have everyone flying around, but maybe a few people now and then.

Description : Do you think the current level of investment in renewable energy sources is sufficient?

Last Answer : Too many powerful groups stand to lose a lot of money if people turn away from fossil fuels. They won’t go down without a fight and they have a lot of resources available to them. They’re also not afraid to play dirty. Forces like these are purposely holding back alternative energy innovation.

Description : There is a pressing need for using renewable energy sources in India.' Justify the statement. -SST 10th

Last Answer : 1. Energy, the basic requirement of our everyday lives as well as the national economy constitutes the necessity of this input in every aspect. 2. The developmental plans since ... caused serious environmental problems which strongly points towards the need to use renewable sources of energy.

Description : Why is it essential to use renewable sources of energy? -SST 10th

Last Answer : (i) Non-renewable sources are going to exhaust such as coal, petrol, natural gas, etc. They can cause environmental pollution; therefore, we have to use renewable resources. (ii) India ... prices of oil and gas and their shortage have raised uncertainties about energy resources in the future.

Description : Why is it essential to use renewable sources of energy? -SST 10th

Last Answer : (i) Non-renewable sources are going to exhaust such as coal, petrol, natural gas, etc. They can cause environmental pollution; therefore, we have to use renewable resources. (ii) India ... prices of oil and gas and their shortage have raised uncertainties about energy resources in the future.

Description : There is a pressing need for using renewable energy sources in India.' Justify the statement. -SST 10th

Last Answer : Need to use Renewable Energy Sources are: (i) The growing consumption of energy has resulted in the country becoming increasingly dependent on fossil fuels such as coal, oil and gas. (ii) ... to use renewable energy sources like solar energy, wind, tide, biomass and energy from waste material.

Description : How to Find Sources of Renewable Energy?

Last Answer : Industrialization and progress started the changes that soon ledto damages in the earth. With climate change and irregular weather,people have become aware that they must do something to save theMother Earth. One ... , factories havebeen using it for a long time. Fossil fuel is used top up power ate

Description : What are dif. renewable energy sources Please list three. ?

Last Answer : There are several options for renewable energy sources. They are: wind power which uses air flow, solar energy which collects energy from the sun, geothermal energy and of course biofuel such ... finding tons of information on this subject is wikipidia @ http://en.wikipedia.org/wiki/Renewable_energy

Description : Which are renewable energy sources?

Last Answer : wind powerHydroelectricitysolar power

Description : Define ENERGY. Name four renewable sources of energy. How can our country come out of Energy Crisis?

Last Answer : Energy: In physics, energy ", is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is ... Administrative Improvement. -Utilization of largest deposits of coal. -Renewable sources of energy. -Public Awareness.

Description : Coal, petroleum & Natural gas are non-renewable sources of energy

Last Answer : non-renewable

Description : Why are the non-renewable sources of energy depleting at a fast rate.

Last Answer : The non-renewable sources of energy are being used extensively so their reserves are depleting at a fast rate.

Description : Name the non-renewable sources of energy

Last Answer : Coal, petroleum & natural gas are non-renewable sources of energy.

Description : Energy sources which are inexhaustible are known as a) commercial energy b) primary energy c) renewable energy d) secondary energy

Last Answer : c) renewable energy

Description : Differentiate between renewable and non-renewable energy sources. 

Last Answer : Sr no. Renewable energy sources  Non-renewable energy sources 1 Energy sources that can be reused called renewable energy sources. Energy sources that can't be reused or nearly impossible ... Examples - solar energy, water energy etc. Example - nuclear energy, coal energy.

Description : List out various renewable energy sources

Last Answer : 1. Solar energy 2. Wind energy 3. Ocean energy 4. Hydro energy 5. Biomass energy 

Description : Describe government policy for harnessing the potential power of renewable energy sources

Last Answer : 1) Promote hybridization of solar and wind energy and build ancillary markets:The synergy in a hybrid wind and solar plant will help reduce variability in power generation. Hybrid projects would also ... , resulting in line faults and leakages, as well as undersized and over-utilized transformers. 

Description : The percentage share of electrical power from solar energy in the total electric power generation from all renewable energy sources sought to be achieved by Indian government by the year 2022, is (A) ~ 57.1% (B) ~ 65.5% (C) ~ 47.5% (D) ~ 75% 

Last Answer : Answer: A

Description : Advantages of renewable Energy sources

Last Answer : Advantages of renewable Energy sources 1. These energy sources are sustainable and will never exhaust 2. It is available in abundance. 3. It has low operating and maintenance cost. 4. No ... energy sources produce no waste products, so it has no impact on environment. It is pollution free.

Description : Different types of Renewable energy sources are

Last Answer : Different types of Renewable energy sources are : 1) Solar energy 2) Wind energy 3) Tidal energy 4) Geothermal energy 5) Bio mass energy Utilization of energy sources can be by ... Direct methods - Thermal and photovoltaic Indirect methods - Tidal, wind, biomass and ocean thermal energy

Description : Compare conventional energy sources with renewable energy sources on any four points. 

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Description : What is the difference between renewable and nonrenewable energy sources?

Last Answer : Renewable energy sources are non-perishable, and Non-renewable energy sources are perishable sources. Non-Renewable energy sources are like  coal, oil,nuclear fuel etc. Renewable energy sources are :- wind, solar, tidal, Geo thermal etc.

Description : What are the different sources of renewable energy?

Last Answer : Solar Wind Tidal Geothermal

Description : Define renewable energy. Give two examples.

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Description : What is renewable source of energy? State two examples for the same.

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Description : What are renewable resources ? Give two examples. -SST 10th

Last Answer : The resources which can be renewed or reproduced by physical, chemical or mechanical processes are known as renewable or replenishable resources. For example, solar and wind energy, water, forests and wildlife, etc. The renewable resource may further be divided into continuous or flow.

Description : What are non renewable resources ? Give two examples. -SST 10th

Last Answer : These occur over a very long geological time. These resources take millions of years in their formation. Some of the resources like metals are recyclable and some like fossil fuels cannot be recycled and get exhausted with their use. For example, coal, bauxite.

Description : What are ‘resources’? Distinguish between renewable and non-renewable resources. Give examples. -SST 10th

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