Which of the following statements are right?( ) A: The sandy layer on top of sandy fields dissipates the soil heat into the atmosphere moreslowly. B: The sandy layer on top of sandy fields allows more rainfall to soak into the soil if it rains. C: The sandy layer on top of sandy fields slows water evaporation down if it doesn’t rain. D: The sandy layer on top of sandy fields absorbs the sun’s heat into the soil more slowly.