Answer:
Around the world the most significant restriction on access to potable water is money. While access to raw water sources, clean or otherwise, is important, the purification process itself is expensive. Once water has been rendered potable, it is important that it be delivered without reintroducing contamination.
Answer: your answer for number 1 is decade millennium or century
Your answer for number 2 is a d or b .
Hope this helps.
Explanation:
Answer:
1
Explanation:
Air pressure gets lower the higher you go
Answer:
C. Tectonic Plate Theory
Explanation:
The Tectonic plate theory says that the crust is broken into multiple different tectonic plates that move across the surface of the upper mantle.
