World Geography Ultrasound which is upper limit of human hearing is characterized by which of the following frequencies? Above 200 KHz Above 2 KHz Below 20 KHz Above 20 KHz Above 200 KHz Above 2 KHz Below 20 KHz Above 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 The longest river in the Common wealth of independent states is the Irtysh river Volga river Yenisei river Ob river Irtysh river Volga river Yenisei river Ob river ANSWER DOWNLOAD EXAMIANS APP
World Geography The region of three W's that is wheat, wool and wine is equatorial regions china type climatic regions steppe type climatic regions mediterranean climatic regions equatorial regions china type climatic regions steppe type climatic regions mediterranean climatic regions ANSWER DOWNLOAD EXAMIANS APP
World Geography The magnetosphere becomes unstable during the magnetic storms during a period of initial phase None of these storm sudden commencement phase main phase initial phase None of these storm sudden commencement phase main phase ANSWER DOWNLOAD EXAMIANS APP
World Geography The Hwang Ho River falls into: Red Sea Yellow Sea. Bay of China Indian Ocean Red Sea Yellow Sea. Bay of China Indian Ocean ANSWER DOWNLOAD EXAMIANS APP
World Geography The oldest rocks found in ocean basins are ____ than the oldest continental rocks. smaller larger younger older smaller larger younger older ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS