Subject :NSO Class : Class 5
A student investigates erosion using four kinds of equal amount of earth materials: top soil, clay, sand and soil planted with grass. Equal amounts of water is allowed to flow from the surface of each type of earth material. The water is then separated out from the earth material with the help of a filter. The given figure shows the amounts of earth material that are collected. The results of this investigation best support which conclusion?
ATop soil is easily eroded.
BSand has a smooth texture.
CWater travels fastest through soil planted with grass.
DWater drains most quickly through clay.
Can you please explain.
Ans 1:
Class : Class 8
how?
Ans 2:
Class : Class 5
top soil is easily eroded (a)
Ans 3:
Class : Class 4
answer a soil erosion will occur
Ans 4:
Class : Class 7
most soil is in A so it is not C is the answer