Question

what are difficulties in using ground based telescope

Answer 1

because grond base telescope are very costly and due to maintenance problem are costly

Answer 2

The difficulties in using ground based telescopes are.
1) Intensity of light data coming from the space decreases due to atmospheric changes.
2) Ground based telescopes cannot be used in the day due to sunlight.
3) They cannot be used when the skies are cloudy .
3) Sometimes the changes in atmospheric conditions can divert the light rays.