How does science help us understand Earth’s complex systems? A. By focusing only on humans, it helps us understand how people are affected by Earth’s systems.
B. By viewing the Earth as a single integrated system, it helps us understand how humanity and Earth are related, and how the systems work
C. By viewing the Earth as many separate systems, it helps us understand how each system functions alone.
D. By looking at other planets, it helps us understand their complex systems and how they are similar to ours.

C

Explanation:

By viewing the earth as many separate systems, it helps us understand how each system functions alone

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach