Elements Of Remote Sensing
The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

Ozone window
Ozone hole
Atmospheric window
Black hole

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Elements Of Remote Sensing
Which one of the following residual biases involves the GPS accuracy?

Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
Signal propagation biases due to the sphere and troposphere propagation
Receiver-dependent biases due to clock stability with line
All listed here

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