World Geography Ultrasound which is upper limit of human hearing is characterized by which of the following frequencies? Above 200 KHz Above 2 KHz Above 20 KHz Below 20 KHz Above 200 KHz Above 2 KHz Above 20 KHz Below 20 KHz ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Ultrasound refers to a sound wave with a frequency greater than the upper limit of human hearing, which is generally over 20 kHz. In general, humans can hear sounds with a frequency between 20 Hz and 20 kHz.
World Geography Cocos plate lies between: North America and Pacific Plate. Central America and Pacific Plate. South America and Pacific Plate. None of these North America and Pacific Plate. Central America and Pacific Plate. South America and Pacific Plate. None of these ANSWER DOWNLOAD EXAMIANS APP
World Geography The knowledge about the topography of the ocean basins has been derived from All of these side-scan sonar seismic surveying echo sounder All of these side-scan sonar seismic surveying echo sounder ANSWER DOWNLOAD EXAMIANS APP
World Geography The ground water that occurs when flow of the subterranean water is not confined by the presence of impermeable layers is called artesian aquifer confined groundwater unconfined groundwater artesian aquifer confined groundwater unconfined groundwater ANSWER DOWNLOAD EXAMIANS APP
World Geography The last major glacial period began about 2,000,000 years before present and is commonly known as Pleistocene or ice age Paleocene or ice age Holocene or ice age Pliocene or ice age Pleistocene or ice age Paleocene or ice age Holocene or ice age Pliocene or ice age ANSWER DOWNLOAD EXAMIANS APP
World Geography The main objective of centrally sponsored Command Area Development programme is improving the utilisation of irrigation potential None of these both (a) and (b) optimizing agricultural productivity and production from the irrigated area improving the utilisation of irrigation potential None of these both (a) and (b) optimizing agricultural productivity and production from the irrigated area ANSWER DOWNLOAD EXAMIANS APP
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