Your answer will be 4, our magnetic field.
Earth itself is largely protected from the solar wind by its magnetic field. However, some of the charged particles are trapped in the Van Allen radiation belt.
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Structure I hope is the right answer
Answer:
The relationship between the Aborigines and the Australian government has fluctuated throughout its history. During the British colonial period, Aborigines were persecuted with their land stolen and many of them killed. With little rights, the population dwindled and by the 1900s the natives were a small minority in their own land.
Explanation:
Doldrum is the region of very calm and little or no wind on either side of the equator. Doldrums which is also called convergence zone is an equatorial region of the Atlantic ocean which has sudden storms and light unppredictable winds. In addition doldrum is abelt around the earth near the equator where the sailing ships sometimes get stuck on windless water.