The total amount of sea ice showed a decline from 2012 to 2019. The correct option would be D.
<h3>Graphical illustration</h3>
Looking at the graph, from February to June 2012, there is a decline in the amount of sea ice.
A similar decline in the amount of sea ice can be observed in the year 2019.
However, the sea ice levels for the various months in 2012 remain generally above the sea ice levels in the various months in 2019.
Thus, overall, one can say there is a general decline in the ice level from 2012 to 2019.
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Radiation can actually affect the entire body, however it has a large effect of the bone marrow. Radiation is dangerous because too much can cause cellular depredation, this happens in environment that rapidly change like the bone marrow, which then interferes with blood cell production.
Answer:
The cells of living things are made mainly of four elements: carbon, hydrogen, oxygen and nitrogen. They make up 96% of the atoms that are in living things, so they would be considered major chemicals. However, depending on how you define major, other elements that only make up a few percent of cells can top the list.
Explanation:
