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.
The greenhouse gases<span> absorb some of this energy and radiate much of it back towards the surface whilst the rest is radiated out to space. This plays an </span>important<span>role in keeping the </span>Earth's<span> surface warm and able to sustain </span>life<span>.</span>
Lighter, positively charged particles form at the top of the cloud. Heavier, negatively charged particles sink to the bottom of the cloud. When the positive and negative charges grow large enough, a giant spark - lightning - occurs between the two charges within the cloud. Hope I helped you out :)
Answer:
Polar Ice Caps Form.
Explanation:
A subduction zone, is the location of where to tectonic plates meet, and can contain all of the above except for polar ice caps.
