Question : In rainy season, while walking along road-side, Vivek asked his father, a botanist, whether some small green, non-flowering, leafy and thalloid plants, having little differentiation of body and growing along pavement are of any use to us. Vivek's father answered that these plants are small but they play very important role in maintaining green cover of the land (i) To which group these small thalloid, green, non-flowering plants belong ? (ii) In what way broyophytes are useful to us ? (iii) Which other groups of plants act ascolonizers of barren rocks and make and suitable for growth of higher plants ? Do these plants play some rol in pollution monitoring.

Question : In rainy season, while walking along road-side, Vivek asked

1.	Question : In rainy season, while walking along road-side, Vivek asked his father, a botanist, whether some small green, non-flowering, leafy and thalloid plants, having little differentiation of body and growing along pavement are of any use to us. Vivek's father answered that these plants are small but they play very important role in maintaining green cover of the land (i) To which group these small thalloid, green, non-flowering plants belong ? (ii) In what way broyophytes are useful to us ? (iii) Which other groups of plants act ascolonizers of barren rocks and make and suitable for growth of higher plants ? Do these plants play some rol in pollution monitoring.
Answer» SOLUTION :(i) These are amphibians of plant kingdom and are known as Bryophytes (ii) These plants bind soil particles and thus prevent soil erosion. They also HELP in colonization of barren LANDS (iii) Lichens. Lichens are GOOD indicators of atomosphere of atmospheric QUANTITY.