Question

answer no 25 its urgent

@ajayviratkohli

I want answer from you​

Answer 1

given:-

radius of cylindrical tank:-2/2=1m

it's height=3.5=35/10 m

let the height of water on roof be h

volume of water in roof = volume of water in tank

lbh=πr²h

22×20×h=22/7 × 35/10 × 1×1

h=22/2×1/22×1/20=1/40

h=1/40 m= 2.5 cm. (1m=100cm)

so, the rainfall is 2.5

views on water conservation:-

1. it is important practice in today's era of irrational water consumption and pollution. it should be practiced at municipal level at all places

2. it can be done by manu simple ways even at domestic level.

3. doing it is a sign of environmental consciousness.

4. some methods of water conservation are rooftop /surface water harvesting, building small Earthen dams etc.

5. this conserve water helps refill underground water bodies and sq

all must practice water conservation for sustainable development.