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How does energy enter the Earth system from internal sources through convection and from external sources through radiation from the Sun?
Energy from internal sources enters the Earth system through convection as heat is transferred from the mantle to the surface through the movement of molten rock. External energy from the Sun enters the Earth system through radiation, with sunlight being absorbed by the Earth's surface and converting into heat energy. Both processes play a crucial role in driving the Earth's climate and geological processes.
What are the three principal sources of internal heat of terrestrial planets?
The three principal internal sources of heat for the terrestrial planets are;accretion,differentiation,radioactivity.The first two mainly occur during the planets formation. Accretion, as gas, dust and smaller bodies collide to form the planet, generating heat on impact and differentiation. Differentiation is the process where the most dense outer material falls to the centre of the planet heating the core through friction during accretion. The source of the thermal energy is the gravitational potential energy which the extended mass had before accretion. The planet holds this heat for billions of years.Radioactive material was present in the original accretion disk. The long lived radioactive elements decay for billions of years. (On Earth, these are potassium-40, uranium-238, uranium-235, and thorium-232.) This also contributes significantly to internal heating, as unstable radioactive nuclei split and release energy (fission).
What are the principal sources of groundwater?
The principal sources of groundwater are rainfall and snowmelt that infiltrate the ground and percolate through soil and rock layers. Groundwater can also come from surface water bodies like rivers and lakes that recharge aquifers through infiltration. Additionally, groundwater can originate from artificial sources such as irrigation or leaking water supply systems.
What is the internal energy sources earth systems?
The internal energy sources of Earth's systems include geothermal energy, radioactive decay in the Earth's core, and heat generated from the planet's formation. These energy sources drive processes like plate tectonics, volcanic activity, and the Earth's magnetic field.
What is internal control of natural cycles?
Internal control of natural cycles refers to the way in which organisms regulate their biological processes, such as growth or reproduction, without external influences. This control is often achieved through internal mechanisms such as hormones or circadian rhythms. It allows organisms to adapt to environmental changes and maintain homeostasis.
What is internal and external sources?
What is internal and external sources?
What are the sources of frustration?
external or internal sources
Describe the main internal and external sources of change that have a major impact on organisations.?
http://www.redruth.cornwall.sch.uk/content/departments/business/notes/External/02_SLEPT_Analysis_Social.pdf
Can anyone please give a few examples of internal and external sources of information?
internal sources are personnel, colleagues and the library whereas external sources can be consultants andservice providers and catalougues.
What are the sources of carbon dioxide Internal and External?
Internal sources of carbon dioxide include human respiration, while external sources include fossil fuel combustion, deforestation, and industrial processes. Both internal and external sources contribute to the overall increase in atmospheric carbon dioxide levels, which is a key driver of climate change.
What is internal and external sources of information in marketing strategy?
Internal sources of information could be a database management system that is used by the company. Employees and management are also examples of internal sources of information. External sources are outside of the organization and harder and could include studies and market research.
What are the different sources of recruitment Explain?
The different sources of recruitment mainly include external and internal. Internal means that you hire from within while external entails sourcing for workers out of the organization.
Internal and external sources of an organization?
external sources include:- communication media supplier customer feed back banks financial instutation internal sources include:- financial report sales data transport data storage data
3 types of financing?
there are internal and external sources of financing. internal sources are things like selling assets such as computers and machinery other internal sources are retained profit and your own personal money. external sources are things like loans, grants and overdrafts.
Sources of finance for business?
A Bussiness can mobilise fund from both internal and external
The awareness of internal and external stimuli defines?
Internal stimuli is unconscious stimuli that occurs without conscious thought. External stimuli occurs from outside sources that procur conscious thought.
How does a government finance a budget deficit?
we have two sources of finance that is external internal fund loans from outside and internal generating from taxes.
