If a nation has a high dependacy rate it means that the nation has a large amount of children, YOUNG children under the age of 18 that must be provided for and taken care of. Hope I helped :)
Answer:
Petroleum is oil from the remains of water organisms, the oil can be found beneath the ocean floor. Petroleum is a crude oil, and is made of pure chemical compound.
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The east coast megalopolis faces serious problems because of <span>water shortages.
</span>Water scarcity<span> is the lack of sufficient available </span>water<span>resources to meet </span>water<span> needs within a region. It affects every continent and around 2.8 billion people around the world at least one month out of every year. More than 1.2 billion people lack access to clean drinking </span>water<span>.</span>
The largest supply of water on Earth is actually in the form of d. glaciers and icecaps - and quite in fact most of the water in glaciers and icecaps is collected in one space- in Antarctica!
Therere is a lot of water in the oceans, but it's not freshwater because it's salty.