Effect Of Water Scarcity On Plants

EFFECT OF WATER SCARCITY OF PLANTS

You must have seen potted plants wilting and ultimately drying up if they did not get water even for a few days. You have already learnt in Chapter 1 that plants need water to get nutrients from the soil to prepare their food. Just imagine the consequences if water is not available to plants!

The green character of the planet shall be lost. This may mean the end of all life, for a world without plants shall mean no food, no oxygen, not enough rain, and innumerable other problems.

Effect Of Water Scarcity On Plants

You might have seen a beam of sunlight when it enters a room through a narrow opening or a hole.You may have also seen beams of light from the headlamps of scooters, cars and engines of trains [Fig. 15.1 (a)]. Similarly, a beam of light can be seen from a torch. Some of

 
(a)Rail engine 

(b)Light house

                                                  Fig. 15.1  Beams of light

you may have seen a beam of searchlight from a light house or from an airport tower [Fig. 15.1 (b)]

What do these experiences suggest?