B.false.
It's more likely our solar system exist in the "suburbs" of the milky way.
Water sources in the Middle East are limited and very polluted. These people do not have clean water, and the water they can get, they are very thankful for, although it is full of bacteria and mud.
Your answer is: B) limited.
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The Great Lakes were formed during the last ice age.
Answer:
Quartz is not pure in this rock.
Explanation:
When quartz shows effervescence in contact with an acid, it means that it is not in its pure state, but rather related to other substances that may be cementing the quartz. This effectiveness is caused by substances that do not react like quartz, such as calcite.
In this case, we can conclude that in relation to the calcium-rich rock shown in the question above, the calcium is not pure, but it is likely to be related to calcite, or other material that does not react to acid.
