Question

Which of the following shows highest reflectance in all rock types?

• A. Concrete
• B. Bare soil
• C. Gravel
• D. Shingles

Hint:

Man-made surfaces like concrete usually have higher and more uniform reflectance than natural surfaces.

Answer 1

The Correct Option is A

When comparing various surfaces and materials, concrete generally exhibits high reflectance characteristics.
In remote sensing and land cover studies, concrete surfaces such as pavements and buildings reflect a significant amount of incoming solar radiation.
Other options like bare soil, gravel, or shingles may have moderate reflectance, but they vary more with moisture, texture, and composition.
Concrete’s uniform structure and light color make it consistently more reflective compared to natural rock and soil surfaces.
Therefore, concrete shows the highest reflectance among the given options.