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A lidless rectangular water tank made of zinc plates is 2 m long, 1.5 m broad and
1 m high
(1) How many square metres of zinc plates are used in the tank?
(2) How many litres of water does it hold when it is full?
(3) Find the cost of zinc plates at Rs 1200 per sq. m.
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Answer:
There are three trophic levels the producer, the consumer and the secondary consumer according to 10% of energy transfer in trophic level.
If the lion has 100 J of energy then
let's take 10% of x = 100 J , then x = 1000J
Thus the producer had 1000 J of energy.