Remote Optical Sensors Quiz

What is the main function of optical remote sensors?

• Detect underground minerals

• Generate electricity

• Measure reflected electromagnetic radiation

• Monitor seismic activity

What do optical sensors use to interact with the Earth's surface?

• Radio waves

• Magnetic fields

• Sound waves

• Electromagnetic radiation

Which type of sensors emit their own radiation source?

• Active sensors

• Passive sensors

• Infrared sensors

• Ultrasonic sensors

What is the primary application of passive sensors?

• Monitoring vegetation, soil, and water

• Measuring wind speed

• Mapping underground caves

• Detecting earthquakes

What is the purpose of Landsat sensors?

• Detecting volcanic eruptions

• Tracking hurricanes

• Observing cloud formations

• Monitoring deforestation and land use changes

What technique is used to identify different surface characteristics using spectral signatures?

• Sonar mapping

• Magnetic resonance imaging

• Thermal imaging

• Spectral analysis

What is the main advantage of optical remote sensors?

• Global coverage and non-destructive analysis

• Limited coverage and destructive analysis

• Slow data processing

• Inaccurate results

What is a limitation of optical remote sensors?

• High resolution capabilities

• Low cost of acquisition and processing

• Ability to see through walls

• Sensitivity to atmospheric conditions

What is the focus of the study on deforestation in the Amazon using optical sensors?

• Loss of forest and impact on biodiversity

• Marine life conservation

• Urban development planning

• Space exploration

What technology is being used for processing large amounts of remote sensor data?

• Mainframe computing

• Analog computing

• Quantum computing

• Cloud computing