This document contains questions about remote sensing and global positioning systems (GPS). It asks about the principles, advantages, limitations and applications of remote sensing, as well as the elements, electromagnetic radiation, interaction with the atmosphere, spectral signature, types of sensors, image resolution, working principles and functional segments of GPS. Remote sensing uses sensors on satellites or aircraft to detect and classify objects on Earth by measuring electromagnetic radiation, while GPS utilizes satellites to pinpoint the geographic location of receivers on Earth and determine their precise positions.