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.
Hope this helps, have a great day! :)
1) Hunting: People can over-hunt a species killing too many of them too fast.
2) Global warming: A place can get to hot for them to survive their anymore like coral reefs for example.
3) Destruction of habitats: This can leave animals defenseless and open to attack.
Answer: its a dicision by a corporation to turn over much of the responsibility for production to independent suppliers.
Explanation:
<span>What you describe is called devolution. This is when power is transferred to lower levels. When devolution occurs, autonomous regions occur and things like federations are created because numerous autonomous regions work together under federative rule, but still retain a great degree of independence.</span>