Answer:
seine river, rhone river, loire river
Explanation:
Bc it’s easy access to get water
i believe its the phillipeans
Answer:
a) b²
b) 4
Explanation:
a) (axa)=a²
(a-b)(a+b) = a²-b²
So it's a²-(a²-b²) = b²
b)
Let a be 6730
(axa) - (a-2)(a+2)
since b =2 and a²-(a²-b²) = b²,
(6730x6730) - 6728 x 6732 = 2² = 4
The stratosphere contains the highest concentration of ozone