Elements Of Remote Sensing
The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called:

Sensors
Active sensors
None of these
Passive sensors

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Elements Of Remote Sensing
Earth observations from a satellite platform provide:

All of these
Synoptic view of a large area
Constant solar zenith angles and similar illumination conditions
Repetitive observations of the same area with intervals of a few minutes to a few weeks

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Elements Of Remote Sensing
Which one the following is a correct statement?

The vertical section of the soil extending into the parent material, is called profile
All of these
The layers of the soil parallel to the earth surface are called horizons
The transitional layer between two adjoining horizons is called boundary

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Elements Of Remote Sensing
Pick up the correct definition from the following with response to GIS.

The geometric property which describes the linkage between line features is defined as connectivity
All of these
The area features which are wholly contained within another area feature, is known so containment
Common boundary between two areas of a locality is known as adjacency

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