Question

Which of the following is considered as the main disadvantage in the application of remote sensing methods?

• A. It saves time and manpower as larger area can be covered
• B. It provides only a synoptic overview or bird's eye view of a larger area
• C. It cannot provide all the information needed for any scientific study
• D. The collection and interpretation is expensive

Hint:

When evaluating pros and cons, consider the fundamental barriers. For many advanced technologies like remote sensing, the high initial and operational cost is a primary limiting factor that restricts its widespread use.

Answer 1

The Correct Option is D

Step 1: Identify the Main Drawback:
The task is to pinpoint the primary disadvantage of using remote sensing technology.

Step 2: Evaluate the Options:
Consider the following:
\[\begin{array}{rl} \bullet & \text{(A) Saves time and manpower...: This represents an advantage, not a disadvantage. } \\ \bullet & \text{(B) Provides a synoptic overview...: A large-scale view is a key advantage. } \\ \bullet & \text{(C) Cannot provide all the information...: Remote sensing data often requires ground verification, but this is common in science. } \\ \bullet & \text{(D) Collection and interpretation is expensive: This is a major disadvantage, encompassing satellite launches, sensor costs, data acquisition, processing, software, and skilled personnel. These high costs limit application. } \\ \end{array}\]The most significant and universal disadvantage is the high cost (D).

Step 3: Conclusion:
The main disadvantage of remote sensing methods is the high cost of data collection and interpretation.