How much water do we really need?

Слайд 2

PLAN

Introduction.
How much water do we really need?
How many Liters?
Conclusion.

PLAN Introduction. How much water do we really need? How many Liters? Conclusion.

Слайд 3

HOW MUCH WATER DO WE REALLY NEED?

HOW MUCH WATER DO WE REALLY NEED?

Слайд 4

2 LITERS ?

2 LITERS ?

Слайд 5

3 LITERS?

3 LITERS?
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