Air above farmland shimmers on a hot day because:
ASoil vapour reflects sunlight
BSand grains glow in the heat
CCrops release extra oxygen
DRoots warm the soil surface
Answer & Solution
Correct answer: A. Soil vapour reflects sunlight
1. Soil holds moisture.
2. Water vapour rising from soil reflects sunlight.
3. Heating soil in a tube shows the droplets.
_Source: NCERT Class 7 Science, Chapter 9, Soil._
Related questions
Soil erosion is most severe in areas with little or no:Removal of land surface by water, wind or ice is:Sohagpur, famous for its surahis and matkas, is in:Potters of Sohagpur mix burnt horse dung into black soil to:Cotton grows best in loam or:Lentils and other pulses need which soil that drains water easily?Soils rich in clay and organic matter with good water retention are ideal for:If 200 mL of water takes 20 minutes to percolate through soil, the percolation rate is: