What color should the satellite cloud be on a sunny day in Tianjin? () A. White B. Blue C. Green D. Yellow.

Analysis of test questions: On the satellite cloud image, white indicates cloud area, the whiter the color, the greater the probability of precipitation, blue indicates ocean and green indicates land.

Comments: This question is easy to make mistakes because it is confused with the knowledge of layered color topographic map. This topic can also examine the concept, characteristics, weather symbols and other knowledge of weather.