Question

what is defined as \higher surface temperatures in urban areas, visible in thermal images?\ tropical plant surfaces surface heat islands rural hot covers

Explanation:

The question asks for the term defining higher urban surface temperatures visible in thermal images. "Tropical plant surfaces" refers to plant surfaces in tropical regions, not urban temperature phenomena. "Rural hot covers" is incorrect as it refers to rural areas, while the definition is about urban areas. "Surface heat islands" are known to be the phenomenon of higher surface temperatures in urban areas, visible in thermal imagery.

Answer:

B. surface heat islands