Non written sources are those which is not written and when archaeologists digged up many cities and places like Mohenjodaro and Harappa they found many things and they said that they were for a particular use. But as there is no written record we do not know that what we are told about it , is it true or not. -- Ria
Pollutants can be classified into point source pollution and nonpoint source pollution. Point solution originates from a single source. Nonpoint polluattion has no single source from where it can be traced.
Pollution that comes from many different sources is called diffuse pollution. This type of pollution is non-point source pollution and can be challenging to control and reduce due to its dispersed nature across various sources.
Non-conventional energy sources are renewable sources of energy that are not based on fossil fuels, such as solar, wind, hydropower, geothermal, and biomass. These sources are often more sustainable and environmentally friendly than traditional fossil fuels, as they produce fewer greenhouse gas emissions and contribute to reducing climate change. Non-conventional energy sources have the potential to be critical components of a more sustainable energy system for the future.
Acquiring fuels from abroad can pose a national security risk.
Two possible sources of groundwater contamination are agricultural runoff, which can carry pesticides and fertilizers into groundwater sources, and leaking underground storage tanks, which can release harmful chemicals into the groundwater.
A source that is not written, like an artifact, a recording, film, or photograph.Examples of nonwritten sources include things like:Cooking utensilsToolsWeaponsCoinsSculpturesCemeteriesPaintingsObviously, oral accounts that have been written down count as nonwritten, too.
The three classifications of sources of information are primary sources, secondary sources, and tertiary sources. Primary sources offer firsthand accounts or original data, secondary sources analyze and interpret primary sources, and tertiary sources provide summaries and overviews of information from primary and secondary sources.
The two different sources are primary and secondary sources
Primary sources and secondary sources
The two classifications of historical sources are primary sources and secondary sources. Primary sources are original, first-hand accounts of an event or topic, while secondary sources are interpretations or analyses of primary sources created by someone not directly involved in the event.
There are three main types of sources: primary sources which are original documents or first-hand accounts, secondary sources that analyze and interpret primary sources, and tertiary sources that summarize or compile information from primary and secondary sources.
primary sources and secondary sources.
simple sources- complex sources
legal sources,customery sources,historical.
Sources refer to the origins of information used in research or study. Types of sources may include primary sources (original documents or first-hand accounts), secondary sources (interpretations or analyses of primary sources), and tertiary sources (reference materials summarizing and organizing information). Other sources can be books, articles, websites, interviews, surveys, and experiments.
Sources Complete subject is 'sources of water'
1.archaeologyical sources 2.literacy sources