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:
Orographic lifting
Exaplanation:
Orographic uplifting is usually defined as the forceful rising up of air mass from a low elevated region a high elevation region, as the wind strikes the mountain and travels over the high mountains. When the air mass rises upward, it undergoes expansion, and gradually cools due to the low atmospheric pressure at the higher elevated region. With subsequent cooling, condensation takes place, and under favorable and correct conditions, it results in the precipitation.
There are many places on earth where orographic uplifting takes place such as in the western ghat of India and the southern part of Andes.
Your answer would be x=16
Differentiation <span>is the process where materials separate into different layers due to density</span>