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Various definitions of pollution exist, which may or may not recognize certain types, such as noise pollution or greenhouse gases.The United States Environmental Protection Administration defines pollution as "Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard.
Earth's layered structure: (1) inner core; (2) outer core; (3) lower mantle; (4) upper mantle; (5) lithosphere; (6) crust. Earth science generally recognizes four spheres, the lithosphere, the hydrosphere, the atmosphere and the biosphere [3] as correspondent to rocks, water, air and life respectively.
The United Nations Conference on the Human Environment was held in Stockholm, Sweden, during June 5–16, 1972.. When the United Nations General Assembly decided to convene the 1972 Stockholm Conference, taking up the offer of the Government of Sweden to host it, [1] UN Secretary-General U Thant invited Maurice Strong to lead it as Secretary-General of the Conference, as the Canadian diplomat ...
Brazil is home to over 6% of the world's endangered species. [8] According to a species assessment conducted by the IUCN Red List of Endangered Species, 97 species have been identified in Brazil with vulnerable, lower risk/near threatened, endangered, or critically endangered standing. [9]
Indeed, the purpose of an encyclopedia is to collect knowledge disseminated around the globe; to set forth its general system to the men with whom we live, and transmit it to those who will come after us, so that the work of preceding centuries will not become useless to the centuries to come; and so that our offspring, becoming better instructed, will at the same time become more virtuous and ...
Chitra (IAST: Citra, चित्र) is a Sanskrit word that appears in the Vedic texts such as hymns 1.71.1 [note 1] and 6.65.2 of the Rigveda.There, and other texts such as Vajasaneyi Samhita, Taittiriya Samhita, Satapatha Brahmana and Tandya Brahmana, Chitra means "excellent, clear, bright, colored, anything brightly colored that strikes the eye, brilliantly ornamented, extraordinary that ...
The four functions of AGIL break into external and internal problems, and further into instrumental and consummatory problems. External problems include the use of natural resources and making decisions to achieve goals, whereas keeping the community integrated and maintaining the common values and practices over succeeding generations are considered internal problems.
Lidar (/ ˈ l aɪ d ɑːr /, also LIDAR, LiDAR or LADAR, an acronym of "light detection and ranging" [1] or "laser imaging, detection, and ranging" [2]) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver.