Question

Q1. How sedimentation is different from decantation?

Q2. Write any two functions of the following. a) roots b) leaves c) stem

Q3. Difference betweem reticulate venation and parallel venation with eg.

q4. Define winnowing and evaporation

Answer 1

Answer:

1. In the sedimentation process, heavier components of the mixture settle on the bottom, due to gravity. Decantation follows sedimentation. The decantation process involves pouring clear, upper liquid out of the container, without disturbing the sediment.

2. (a) Roots absorb water and minerals from the soil. (b) Stem holds the plant upright. (c) Stem conducts water to the leaves.

Answer 2

Answer:

Sedimentation is defined as the separation process in which solids are separated from the liquid. All the solids settle down at the bottom of a beaker and on top, a clear layer of liquid is obtained. Decantation is defined as the separation process in which two immiscible liquids are separated