Remote sensing is the acquisition of information about an object without physically contacting it.

Remote sensing is the acquisition of information about an object without physically contacting it.

• A. Sometimes
• B. Not applicable
• C. False
• D. True

Answer: (D)

Remote sensing means gathering information about an object or area without physically contacting it, typically by measuring energy that is reflected, emitted, or scattered from the object from a distance—for example, using cameras, satellites, or radar mounted on an aircraft. This distance-based data collection is what defines remote sensing, and it applies across modalities like optical imagery, infrared, LiDAR, and radar. Because this definition captures the standard way remote sensing works, the statement is true. The other options don’t fit: saying it’s sometimes would imply inconsistency with the general definition, not applicable isn’t relevant to the concept, and false would contradict the well-established understanding of remote sensing.

Remote sensing means gathering information about an object or area without physically contacting it, typically by measuring energy that is reflected, emitted, or scattered from the object from a distance—for example, using cameras, satellites, or radar mounted on an aircraft. This distance-based data collection is what defines remote sensing, and it applies across modalities like optical imagery, infrared, LiDAR, and radar.

Because this definition captures the standard way remote sensing works, the statement is true. The other options don’t fit: saying it’s sometimes would imply inconsistency with the general definition, not applicable isn’t relevant to the concept, and false would contradict the well-established understanding of remote sensing.