उत्तर : 1. "वे पृथ्वी की वक्रता के कारण अधिक दूरी तक डेटा संचारित नहीं कर सकते हैं"
व्याख्या :

Explanation: Most communication waves cannot transmit data accurately over long distances due to the curvature of the earth. They can only do so in the line of sight. However, they are not reflected by the ionosphere like radio waves and can be relayed to a wide area using geostationary satellites.