Multiple choice

The mapping of which of the following is most difficult?

  1. Mountains

  2. Plateaus and plains

  3. Interior of the earth

  4. Ocean and their depth

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mapping the earth's interior is most difficult because it cannot be directly observed or measured. Scientists rely on indirect methods like seismic waves to study it. Mountains, plateaus, plains, and ocean depths can all be mapped using direct observation and modern technology.