Question

ans my question in short
1)write two eg of food chain?
2) define rain water harvesting?
3)define transpiration? list factor affecting it?
4)why is natural water not considered to be safe for drinking?
5)define photosynthesis with it's reaction ?
6) difference between the pure and impure substance

Answer 1

rain water is the process of collecting rain water from roof top anb conserve them for future is called rain water harvesting

Answer 2

1. first example--
plants--> grasshopper --> frog --> snake --> peacock
second example--
plants--> rat --> snake --> hawk
2. rain water harvesting is the conservation of natural water through various methods.
3. Transpiration is the loss of water in the form of water vapour from the leaves and other aerial parts of the plant.
5. Photosynthesis is the process by which living plant cells, containing chlorophyll, produce food substances, from CO2 and H2O, by using light energy.
6CO2 + 12H2O ------> C6H12O6 + 6H2O + 6O2 (evaporates)