What is the opinion of present day scientists about the origin of moon? -Geography

What is the opinion of present day scientists about the origin of moon? -Geography
by

1 Answer

Answer :

In 1838, Sir George Darwin suggested that initially the earth and the moon formed a single rapidly rotating body. The whole mass became a dumb-bell shaped body and eventually it broke. The material separated from the earth was formed as moon and the place became the Pacific Ocean. It is not accepted now. The present theory is the “giant impact theory” or “big splat theory”. A large size body of Mars collided with the earth and that portion was separated from the earth. The same portion became as a moon which revolves around the earth. The moon was formed about 4.44 billion years ago.
by

Related questions

Describe the nature and mode of origin of the chief types of rock at the earth’s crust. How will you distinguish them?\ -Geography

Description : Describe the nature and mode of origin of the chief types of rock at the earth’s crust. How will you distinguish them?\ -Geography

Last Answer : The earth's crust is composed of rocks. A rock is made up by aggregate of one or more minerals. Rock may be hard or soft and in varied colours. For example, granite is hard, ... contact with the crustal rocks or the underlying rocks are subjected to great amounts of pressure by overlying rocks.

Explain the earliest theory associated with the origin of the earth. -Geography

Description : Explain the earliest theory associated with the origin of the earth. -Geography

Last Answer : A large number of hypotheses were put forth by different philosophers and scientists regarding the origin of the earth. One of the earlier and popular arguments was by German philosopher Immanuel Kant ... formation of a disk-shaped cloud and the planets were formed through the process of accretion.

What is the basic difference in the arguments related to the origin of the earth given by (a) Kant and Laplace (b) Chamberlain and Moulton. -Geography

Description : What is the basic difference in the arguments related to the origin of the earth given by (a) Kant and Laplace (b) Chamberlain and Moulton. -Geography

Last Answer : Kant and Laplace’s Principle: The hypothesis considered that the planets were formed out of a cloud of material associated with a youthful sun, which was slowly rotating. According to this ... of a companion to the sun to have been coexisting. These arguments are called binary theories.

Who gave their opinions about the formation of the moon? What did they opine? -Geography

Description : Who gave their opinions about the formation of the moon? What did they opine? -Geography

Last Answer : In 1838, Sir George Darwin suggested that initially the earth and the moon formed a single rapidly rotating body. The whole mass became a dumb-bell shaped body and eventually it broke. The material ... was separated from the earth. The same portion became as a moon which revolves around the earth.

How can solar energy solve the energy problem to some extent in India? Give your opinion. -Geography

Description : How can solar energy solve the energy problem to some extent in India? Give your opinion. -Geography

Last Answer : 1. India is a tropical country; it has enormous possibilities of tapping solar energy. 2. Solar energy is an important alternate source. 3. Government should educate the people for maximum use ... conservation. 7. The use of solar energy will reduce the pressure on conventional sources of energy.

Mention three constraints explaining why cultivable waste land is not being used for cultivation at present. -Geography

Description : Mention three constraints explaining why cultivable waste land is not being used for cultivation at present. -Geography

Last Answer : The constraints are : 1. Due to human neglect, large tracts of land of U.P., Punjab and Haryana turned infertile due to salinity or alkalinity of soil. 2. Due to extensive soil ... the soil resulting from faulty agricultural practices, large tracts of land now, can not be used for agriculture.

(i) What is the present population of India? (ii) With reference to the percentage of world population, state India’s position in the world. -Geography

Description : (i) What is the present population of India? (ii) With reference to the percentage of world population, state India’s position in the world. -Geography

Last Answer : (i) According to the census 2011, the population of India was 1.21 billion and it can be estimated that the present population of India will be more than 1.21 billion. (ii) India’s position in the world is second with reference to the world population.

What is the percentage of net sown area and net forest area of India in present times ? -Geography

Description : What is the percentage of net sown area and net forest area of India in present times ? -Geography

Last Answer : The Net shown area of India is 46.5%. Net Forest area of India is 69.78 million hectares or 22.86%.

Name any two narrow gauge railway lines present in the Himalayan region. -Geography

Description : Name any two narrow gauge railway lines present in the Himalayan region. -Geography

Last Answer : Two narrow-gauge railway lines present in the Himalayan region are : 1. Kalka to Simla 2. Siliguri to Darjeeling.

Which of the following programme has been launched by present Union Government for the cleaning of river Ganga? (a) Ganga Action Plan -Geography

Description : Which of the following programme has been launched by present Union Government for the cleaning of river Ganga? (a) Ganga Action Plan -Geography

Last Answer : (b) Namami Gange

What origin do scientists attribute to the Voynich manuscript and why?

Description : What origin do scientists attribute to the Voynich manuscript and why?

Last Answer : What is the answer ?

What Theory that many scientists accept as an explanation for the origin of the universe?

Description : What Theory that many scientists accept as an explanation for the origin of the universe?

Last Answer : Need answer

How are resources classified on the basis of origin?

Description : How are resources classified on the basis of origin?

Last Answer : a) Biotic resources b) Abiotic resources

Okay scientists of , what if the moon was destroyed ?

Description : Okay scientists of , what if the moon was destroyed ?

Last Answer : the answer depends a great deal on how it's being destroyed.

Why do scientists continue to study the Moon long after the Apollo program ended and list some of the types of data that have been collected.?

Description : Why do scientists continue to study the Moon long after the Apollo program ended and list some of the types of data that have been collected.?

Last Answer : One type of data currently collected as a direct result of theApollo Program is the Lunar Laser Ranging Experiment. The ongoingLunar Laser Ranging Experiment measures the distance between theEarth and the Moon using ... (11, 14, and 15), and the time for the reflected light to return isdetermined.

Why is the demand of water for irrigation increasing day by day? Discuss. -Geography

Description : Why is the demand of water for irrigation increasing day by day? Discuss. -Geography

Last Answer : The demand of water is increasing day by day because: (i) Irrigation is needed because of spatio-temporal variability in rainfall in the country. The large tracts of the ... for agriculture, water need of certain crops makes irrigation necessary. Irrigation makes multiple cropping possible.

The land under cultivation has got reduced day by day. Can you imagine its consequences? -Geography

Description : The land under cultivation has got reduced day by day. Can you imagine its consequences? -Geography

Last Answer : India shall no longer be self-sufficient in its requirements of food grains. Landless labourers will outweigh the ranks of unskilled – unemployed workers in India. More farmers will switch over to the cultivation of high-value crops

What scientists study past and present day human beings?

Description : What scientists study past and present day human beings?

Last Answer : An anthropologist studies past and present day human beings.

Man went to the Moon, but the origin of a cat’s purr remains a mystery?

Description : Man went to the Moon, but the origin of a cat’s purr remains a mystery?

Last Answer : answer:And we still use umbrellas, go figure. Its also probably a matter of people not caring that much. Not exactly an issue that will change the world.

Did the advent of mapping satellites have any tremendous impacts on the depiction of geography?

Description : Did the advent of mapping satellites have any tremendous impacts on the depiction of geography?

Last Answer : Not geography related, but check this out: http://www.msnbc.msn.com/id/43164447/ns/technology_and_science-science/

What are some good resources for studying the role of climate and geography in the development of civilizations?

Description : What are some good resources for studying the role of climate and geography in the development of civilizations?

Last Answer : Any AP World History text because that is one of the themes discussed. I like Traditions and Encounters” by Bentley & Ziegler. You might want to buy it used or borrow it because new it’s about $250. But here’s a hint: waterways and trade routes.

Was geography an easy subject for you?

Description : Was geography an easy subject for you?

Last Answer : Not so great.

How is your geography knowledge? Were you taught it in school?

Description : How is your geography knowledge? Were you taught it in school?

Last Answer : i know i’m here and you’re there. i do alright.

Name the different types of environmental pollution. -Geography

Description : Name the different types of environmental pollution. -Geography

Last Answer : The different types of environmental pollution are:- 1. Air pollution 2. Water pollution 3. Soil pollution 4. Noise pollution.

What are the measures to control water pollution? -Geography

Description : What are the measures to control water pollution? -Geography

Last Answer : 1. Industrial effluents must be treated. 2. Drinking water sources must be kept clean. 3. Sewage treatment plants, disposal of waste on the water bodies must be controlled.

What is Bio-diversity? -Geography

Description : What is Bio-diversity? -Geography

Last Answer : The variety of flora (plants) and fauna (animals) in a region is known as biodiversity. Define The Following: 1. Biosphere : Biosphere is the part of the earth where life exists. 2 ... 6. Acid rain : Acid rain contains high amounts of acids particularly sulphuric acid and carbon monoxide.

The only living planet in our solar system is ____ -Geography

Description : The only living planet in our solar system is ____ -Geography

Last Answer : Correct Answer is: (a) Earth

What is environment? -Geography

Description : What is environment? -Geography

Last Answer : Environment is the surroundings where and organism, a community or an object exists.

What is environmental pollution? -Geography

Description : What is environmental pollution? -Geography

Last Answer : Environmental pollution is the unfavorable alteration of . our surrounding, wholly or partly by human action through direct and indirect effects.

What are the important air pollutants? -Geography

Description : What are the important air pollutants? -Geography

Last Answer : The important air pollutants are carbon dioxide, carbon monoxide, sulphur dioxide, nitrogen oxide, chloroflaoro carbons, hydro carbons etc.

What are the measures to control air pollution? -Geography

Description : What are the measures to control air pollution? -Geography

Last Answer : 1. Control of gaseous pollutants. 2. Contrpl of emission from automobiles. 3. Planting more trees. 4. Use of non-conventional energy sources. 5. Awareness programme, legal control literacy and education.

What tis water pollution? -Geography

Description : What tis water pollution? -Geography

Last Answer : Water pollution is alteration in physical, chemical and biological characteristics of water which may have harmful effects on human and aquatic life.

What are the important sources of water pollution? -Geography

Description : What are the important sources of water pollution? -Geography

Last Answer : The important sources of water pollution are : Natural: Soil erosion, landslides, volcanic eruption, decay and decomposition of plants and animals etc.. Man made: Industrial effluents, urban waste, domestic waste, agricultural waste, thermal waste, oil spill, nuclear waste etc.

Name the different kinds of water pollution. -Geography

Description : Name the different kinds of water pollution. -Geography

Last Answer : Water pollution is of different types. 1. Sea or ocean water pollution 2. Ground water pollution 3. River water pollution 4. Lake pollution. Etc.

What is soil pollution? -Geography

Description : What is soil pollution? -Geography

Last Answer : Soil pollution is decrease in the quality of soils either due to human sources or natural sources by both.

What are the results of soil pollution? -Geography

Description : What are the results of soil pollution? -Geography

Last Answer : It results in the increase of soil erosion, lack of humus, decrease in soil microorganisms, plant nutrients etc.

What are the sources of soil pollution? -Geography

Description : What are the sources of soil pollution? -Geography

Last Answer : Sources of soil pollution, industrial and mining waste. Domestic and urban waste, agricultural waste, nuclear waste etc.

What are the effects of soil pollutants? -Geography

Description : What are the effects of soil pollutants? -Geography

Last Answer : The effects of soil pollutants are it decreases the fertility of the soil, converts the region into wasteland, destroys the micro organisms in the soil etc.

What is noise pollution? -Geography

Description : What is noise pollution? -Geography

Last Answer : Noise pollution is any undesirable sound dumped into the atmosphere leading to health hazards.

What are the important sources of noise pollution? -Geography

Description : What are the important sources of noise pollution? -Geography

Last Answer : The important sources of noise pollution are : Natural: Thunder, cyclones, lightning, heavy rainfall, hailstorms, water falls, ocean waves. Man-made: Industrial noise, automobiles, air crafts, domestic noise, mining etc.

What are the effects of noise pollution? -Geography

Description : What are the effects of noise pollution? -Geography

Last Answer : The noise pollution causes temporary or permanent hearing problem, headaches, restlessness,, cardio vascular diseases, physical disorder, behavioural changes, lack of concentration, etc.

What are the various methods of soil conservation? -Geography

Description : What are the various methods of soil conservation? -Geography

Last Answer : Many different Methods of soil conservation: 1. Contour Plowing - Originating in ancient Phoenicia, Contour Plowing involves plowing grooves into the desired farmland, then planting the crop ... of nitrogen fertilizer and fungicides can increase yields and protect crops from drought and flooding.

What are the measures to control noise pollution? -Geography

Description : What are the measures to control noise pollution? -Geography

Last Answer : 1. Industries must be located away from the residential areas. 2. Construction of sound proof walls in the factories. 3. Restricting unnecessary use of sirens, horns and loud speakers. 4. ... 5. Protective instruments the workers in the industries. 6. Noise producing vehicles must be checked.

Why is North America called ‘Land of Prairies’? -Geography

Description : Why is North America called ‘Land of Prairies’? -Geography

Last Answer : The central plains of North America are also known as the great plains or the prairies. The plain consists of vast expanse, almost 3/5 of the total area of North America of flat to gently rolling ... tributaries. This is one of the most fertile plains of the world and is a good farming region.

Make a list of important countries of North America. -Geography

Description : Make a list of important countries of North America. -Geography

Last Answer : There are 24 countries in North America. Canada, United States of America and Mexico are three large countries by their size.

Mention the location and extent of North America -Geography

Description : Mention the location and extent of North America -Geography

Last Answer : North America is located entirely to the North of the equator. It lies within 7°N to 84°N latitudes. The Tropic of Cancer passes through Mexico and the Arctic circle through the northern part of Canada ... by the Isthmus of Panama. It is separated from the continent of Asia by the Berring Strait.

How are the Grand Canyon of North America formed? -Geography

Description : How are the Grand Canyon of North America formed? -Geography

Last Answer : The Colorado river drains into Colorado Plateau and forms the Grand Canyon.

Name the important plants of animals of North America. -Geography

Description : Name the important plants of animals of North America. -Geography

Last Answer : North America has a wide variety of natural vegetation and wildlife. 1. The Tundra Mosses and Lichens are found here. Some stunted flowering plants grow in summer. Animals like Arctic fox, ... Animals like the desert fox, lizards, rattle snakes and various kinds of insects are found here.

Make a list of important rivers of North America. -Geography

Description : Make a list of important rivers of North America. -Geography

Last Answer : The Mississippi and Missouri are the great rivers of North America. The other rivers are Ohio, Tennessee Arkansas, Rio Grande, Yukon, Red, Colorado, Columbia, Peace, Snake and St. Lawrence etc.,

Who is called ‘Lumber Jacks’ in North America? -Geography

Description : Who is called ‘Lumber Jacks’ in North America? -Geography

Last Answer : Lumbering is a highly organized job in North America People engaged in lumbering in Canada are known as ‘Lumber Jacks’.