Silica is something in the magma, so it is a pretty important part of magma because it pretty much a part that makes magma!
<u>Answer:</u>
Rising sea levels recorded due to melting glaciers can be considered an observable indication of global warming
<u>Explanation:</u>
The glaciers in the sea are melting due to global warming.This is occurring due to the increase in the global temperature. Year after year, higher temperatures are being recorded and this heat in turn is melting the Arctic glaciers thus adding on to the level of the oceans.
The increased temperature will also disrupt the fauna and floral life. All automobiles don't necessarily have to contribute to global warming. There exist eco-friendly automobiles as well.
Answer:
C. lower birthrates
Explanation:
The decline in European population is not due to a big number of deaths, but a small number of births.
Some of the reasons for a low birth rate are:
-education and assimilation of women in the workplace
-general well-being and a feeling of security
-high cost of having children
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